APA aipamena

(1965). Power farming. Farmer and Stockbreeder Pub..

Chicago Style aipamena

Power Farming. London: Farmer and Stockbreeder Pub., 1965.

MLA aipamena

Power Farming. Farmer and Stockbreeder Pub., 1965.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.