APA (7th ed.) Citation

Haebler, K., & Osborne, L. E. (1933). The study of incunabula. The Grolier Club.

Chicago Style (17th ed.) Citation

Haebler, Konrad, and Lucy Eugenia Osborne. The Study of Incunabula. New York: The Grolier Club, 1933.

MLA (9th ed.) Citation

Haebler, Konrad, and Lucy Eugenia Osborne. The Study of Incunabula. The Grolier Club, 1933.

Warning: These citations may not always be 100% accurate.