Citazione Stile APA (7a Edizione)

(1975). Teachers study guide on the biology of human populations. Unesco.

Citazione stile Chigago Style (17a edizione)

Teachers Study Guide on the Biology of Human Populations. Paris: Unesco, 1975.

Citatione MLA (9a ed.)

Teachers Study Guide on the Biology of Human Populations. Unesco, 1975.