APA (7th ed.) Citation

Stillwell, M. B., & Bibliographical Society of America. (1940). Incunabula in American libraries: A second census of fifteenth-century books owned in the United States, Mexico, and Canada. Bibliographical Society of America.

Chicago Style (17th ed.) Citation

Stillwell, Margaret Bingham, and Bibliographical Society of America. Incunabula in American Libraries: A Second Census of Fifteenth-century Books Owned in the United States, Mexico, and Canada. New York: Bibliographical Society of America, 1940.

MLA (8th ed.) Citation

Stillwell, Margaret Bingham, and Bibliographical Society of America. Incunabula in American Libraries: A Second Census of Fifteenth-century Books Owned in the United States, Mexico, and Canada. Bibliographical Society of America, 1940.

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