Παραπομπή APA

W R Butt. (1967). Hormone chemistry. D.Van Nostrand company Ltd.

Παραπομπή Chicago Style

W R Butt. Hormone Chemistry. D.Van Nostrand company Ltd, 1967.

Παραπομπή MLA

W R Butt. Hormone Chemistry. D.Van Nostrand company Ltd, 1967.