Williams, R. (1955). Textbook of Endocrinology (2.ed.). Saunders Company.
Chicago Style aipamenaWilliams, Robert. Textbook of Endocrinology. 2.ed. Philadelphia: Saunders Company, 1955.
MLA aipamenaWilliams, Robert. Textbook of Endocrinology. 2.ed. Saunders Company, 1955.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.