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@samcarter has very helpfully shown how to capitalize article, journal and book titles in biblatex bibliography (see here). However, the question remains as to how to capitalize subtitles as in this bib entry for a book with a title and a subtitle:

@Book{Elias2000,
  author =       "Norbert Elias",
  title =        "The civilizing process",
  year =         "2000 [1939]",
  subtitle =     "Sociogenetic and psychogenetic investigations",
  edition =      "Revised",
  publisher =    "Blackwell",
  location =     "Oxford"}

In a nutshell, how can we make @samcarter's solution work for the subtitle Sociogenetic and psychogenetic investigations as well?

Thank you so much!

Daniel
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1 Answers1

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The Chicago biblatex style seems to use the stnoformat field format for the subtitle. You can redefine it like this:

\documentclass{scrbook}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}

% Bibliography
\usepackage[backend=biber, style=chicago-authordate, hyperref=auto, bibencoding=inputenc, refsection=chapter, doi=false, url=false, isbn=false, eprint=false]{biblatex}
\usepackage[babel,autostyle=true]{csquotes}

% Capitalize article titles and journal names
\usepackage{mfirstuc} 
\MFUnocap{a}
\MFUnocap{for}
\MFUnocap{the}
\MFUnocap{of}
\MFUnocap{and}
\MFUnocap{con}
\MFUnocap{il}
\DeclareFieldFormat{jtnoformat}{\capitalisewords{#1}}
\DeclareFieldFormat{stnoformat}{\capitalisewords{#1}}

\usepackage{xpatch}
\xpatchbibmacro{mag+news+title}{\printfield[noformat]{title}}{\printfield[jtnoformat]{title}}{}{}

\xpatchbibmacro{italtitle+stitle}{\printfield[tnoformat]{title}}{\printfield[jtnoformat]{title}}{}{}

\begin{filecontents*}[overwrite]{sample.bib}
@Book{Elias2000,
  author =       "Norbert Elias",
  title =        "The civilizing process",
  year =         "2000 [1939]",
  subtitle =     "Sociogenetic and psychogenetic investigations",
  edition =      "Revised",
  publisher =    "Blackwell",
  location =     "Oxford"}
\end{filecontents*}

\addbibresource{sample.bib}

\begin{document}

\nocite{Elias2000}.

\printbibliography

\end{document}

enter image description here

samcarter_is_at_topanswers.xyz
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  • Above @samcarter has very helpfully shown how to capitalize article, journal and book titles and subtitles in biblatex bibliography. However, new instances of bibliographic references keep cropping up. For example, I now have a book chapter, so I use the `InBook` type of `bib`entry; but the result is that the chapter title is capitalized, which is what I want, but the book title is not, which is not what I want. My question is, where is the reference document where @samcarter finds how to adjust these options? As usual, thank you very much for your time! Daniel – Daniel Mar 23 '23 at 14:43
  • I don't think there is a dedicated reference document, I usually look into the source code to see what the field formats are called, e.g. http://mirrors.ctan.org/macros/latex/contrib/biblatex-contrib/biblatex-chicago/latex/chicago-authordate.bbx – samcarter_is_at_topanswers.xyz Mar 23 '23 at 14:48
  • Thank you @samcarter! I've looked into the `.bbx` document you've linked to and I've added the line `\DeclareFieldFormat{booktitle}{\capitalisewords{#1}}` which does capitalize the book title BUT has the unintended consequence of printing it in regular font, rather than in italics as it was originally and I would like to still have it. How come? – Daniel Mar 24 '23 at 19:34
  • @Daniel Can you ask a new question? – samcarter_is_at_topanswers.xyz Mar 24 '23 at 19:45
  • thank you @samcarter! You can find the new question [here](https://stackoverflow.com/questions/75841654/capitalize-and-keep-in-italics-the-main-title-of-an-edited-book-in-biblatex-bibl) – Daniel Mar 25 '23 at 12:25