Citazione APA

Eddy, W. H. (1941). What are the vitamins? Reinhold Publishing Corporation.

Stile di citazione Chicago

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

Citazione MLA

Eddy, Walter Hollis. What Are the Vitamins? Reinhold Publishing Corporation, 1941.