APA (7th ed.) Zitazioa

(1975). Teacher's study guide on the biology of human. UNesco.

Chicago Style (17th ed.) Zitazioa

Teacher's Study Guide on the Biology of Human. Paris: UNesco, 1975.

MLA (9th ed.) Zitazioa

Teacher's Study Guide on the Biology of Human. UNesco, 1975.