Ludwig & Mayer Schriftgiesserei. (1955). Firmin Didot: Rebirth of an 18th century classic typeface. Ludwig & Mayer Typefoundry.
Chicago Style (17th ed.) CitationLudwig & Mayer Schriftgiesserei. Firmin Didot: Rebirth of an 18th Century Classic Typeface. Frankfurt am Main, West Germany: Ludwig & Mayer Typefoundry, 1955.
MLA (9th ed.) CitationLudwig & Mayer Schriftgiesserei. Firmin Didot: Rebirth of an 18th Century Classic Typeface. Ludwig & Mayer Typefoundry, 1955.
Warning: These citations may not always be 100% accurate.