APA (7th ed.) Citation

Ruthenberg, H. (1971). Farming systems in the tropics. Clarendon Press.

Chicago Style (17th ed.) Citation

Ruthenberg, Hans. Farming Systems in the Tropics. Clarendon Press, 1971.

MLA (8th ed.) Citation

Ruthenberg, Hans. Farming Systems in the Tropics. Clarendon Press, 1971.

Warning: These citations may not always be 100% accurate.