Dyfyniad APA

Gordon, E. S., & Sevringhaus, E. L. (1942). Vitamin therapy in general practice. The Year book publishers, inc.

Dyfyniad Arddull Chicago

Gordon, Edgar S., and Elmer L. Sevringhaus. Vitamin Therapy in General Practice. Chicago, Ill.: The Year book publishers, inc, 1942.

Dyfyniad MLA

Gordon, Edgar S., and Elmer L. Sevringhaus. Vitamin Therapy in General Practice. The Year book publishers, inc, 1942.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.