Cita APA (7th ed.)

Williams, R. H. (1968). Textbook of endocrinology (4a. ed.). W.B. Saunders.

Cita Chicago (17th ed.)

Williams, Robert H. Textbook of Endocrinology. 4a. ed. Filadelfia: W.B. Saunders, 1968.

Cita MLA (9th ed.)

Williams, Robert H. Textbook of Endocrinology. 4a. ed. W.B. Saunders, 1968.