APA (7th ed.) Citation

Horodisch, A., & Lehmann-Haupt, H. (1948). Initials from French incunabula. Aldus book co..

Chicago Style (17th ed.) Citation

Horodisch, Abraham, and Hellmut Lehmann-Haupt. Initials from French Incunabula. New York: Aldus book co., 1948.

MLA (9th ed.) Citation

Horodisch, Abraham, and Hellmut Lehmann-Haupt. Initials from French Incunabula. Aldus book co., 1948.