Zapf, H., & Rosenberger, A. (1952). Pen and graver: Alphabets & pages of calligraphy. Museum Books.
Chicago Style (17th ed.) CitationZapf, Hermann, and August Rosenberger. Pen and Graver: Alphabets & Pages of Calligraphy. New York: Museum Books, 1952.
MLA (9th ed.) CitationZapf, Hermann, and August Rosenberger. Pen and Graver: Alphabets & Pages of Calligraphy. Museum Books, 1952.
Warning: These citations may not always be 100% accurate.