APA (7. basım) Alıntı

Sprout, H., & Sprout, M. (1965). The ecological perspective on human affairs with special reference to international politics. Princeton University.

Chicago Style (17. basım) Atıf

Sprout, Harold, ve Margaret Sprout. The Ecological Perspective on Human Affairs with Special Reference to International Politics. Princeton: Princeton University, 1965.

MLA (9th ed.) Atıf

Sprout, Harold, ve Margaret Sprout. The Ecological Perspective on Human Affairs with Special Reference to International Politics. Princeton University, 1965.