APA (7th ed.) Citation

Eddy, W. H. (1941). What are the vitamins? Reinhold publishing corporation.

Chicago Style (17th ed.) Citation

Eddy, Walter Hollis. What Are the Vitamins? New York, N.Y.: Reinhold publishing corporation, 1941.

MLA (9th ed.) Citation

Eddy, Walter Hollis. What Are the Vitamins? Reinhold publishing corporation, 1941.

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