Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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