APA aipamena

WRIGHLEY, G. Tropical agriculture#the development of production#Gordon Wrighley. Longman.

Chicago Style aipamena

WRIGHLEY, Gordon. Tropical Agriculture#the Development of Production#Gordon Wrighley. Longman.

MLA aipamena

WRIGHLEY, Gordon. Tropical Agriculture#the Development of Production#Gordon Wrighley. Longman.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.