APA (7th ed.) Citation

(1942). Directory of American Scholars: A biographical directory. Science Press.

Chicago Style (17th ed.) Citation

Directory of American Scholars: A Biographical Directory. Lancaster, Pa: Science Press, 1942.

MLA (9th ed.) Citation

Directory of American Scholars: A Biographical Directory. Science Press, 1942.

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