APA (7th ed.) Citation

Allen, R. M. (1940). The microscope. D. Van Nostrand.

Chicago Style (17th ed.) Citation

Allen, Roy Morris. The Microscope. New York: D. Van Nostrand, 1940.

MLA (9th ed.) Citation

Allen, Roy Morris. The Microscope. D. Van Nostrand, 1940.

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