@@ -524,7 +524,8 @@ Citation rendering
524524: Specify bibliography database to be used in resolving
525525 citations. The database type will be determined from the
526526 extension of *FILE*, which may be `.mods` (MODS format),
527− `.bib` (BibTeX/BibLaTeX format),
527+ `.bib` (BibLaTeX format, which will normally work for BibTeX
528+ files as well), `.bibtex` (BibTeX format),
528529 `.ris` (RIS format), `.enl` (EndNote format),
529530 `.xml` (EndNote XML format), `.wos` (ISI format),
530531 `.medline` (MEDLINE format), `.copac` (Copac format),
@@ -2135,7 +2136,8 @@ you will need a bibliographic database in one of the following formats:
21352136 Format File extension
21362137 ------------ --------------
21372138 MODS .mods
2138− BibTeX/BibLaTeX .bib
2139+ BibLaTeX .bib
2140+ BibTeX .bibtex
21392141 RIS .ris
21402142 EndNote .enl
21412143 EndNote XML .xml
@@ -2144,6 +2146,9 @@ you will need a bibliographic database in one of the following formats:
21442146 Copac .copac
21452147 JSON citeproc .json
21462148
2149+Note that `.bib` can generally be used with both BibTeX and BibLaTeX
2150+files, but you can use `.bibtex` to force BibTeX.
2151+
21472152You will need to specify the bibliography file using the `--bibliography`
21482153command-line option (which may be repeated if you have several
21492154bibliographies).