APA aipamena

Howard, A. (1924). Crop-production in India: A critical survey of its problems. Oxford University Press.

Chicago Style aipamena

Howard, Albert. Crop-production in India: A Critical Survey of Its Problems. London: Oxford University Press, 1924.

MLA aipamena

Howard, Albert. Crop-production in India: A Critical Survey of Its Problems. Oxford University Press, 1924.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.