APA (7th ed.) Zitazioa

BARRATT, J. (1972). International aspects of overpopulation: Proceedings of a conference held by the. Macmillan.

Chicago Style (17th ed.) Zitazioa

BARRATT, Jhon. International Aspects of Overpopulation: Proceedings of a Conference Held by the. London: Macmillan, 1972.

MLA (9th ed.) Zitazioa

BARRATT, Jhon. International Aspects of Overpopulation: Proceedings of a Conference Held by the. Macmillan, 1972.