Howard, A. (1924). Crop-production in India: A critical survey of its problems. Oxford University Press.
Cita Chicago (17th ed.)Howard, Albert. Crop-production in India: A Critical Survey of Its Problems. London: Oxford University Press, 1924.
Cita MLA (8th ed.)Howard, Albert. Crop-production in India: A Critical Survey of Its Problems. Oxford University Press, 1924.
Atenció: Aquestes cites poden no estar 100% correctes.