APA Citation

Ruthenberg, H. (1976). Farming systems in the tropics (2. edition.). Oxford: Clarendon Press.

Chicago Style Citation

Ruthenberg, Hans. Farming Systems in the Tropics. 2. edition. Oxford: Clarendon Press, 1976.

MLA Citation

Ruthenberg, Hans. Farming Systems in the Tropics. 2. edition. Oxford: Clarendon Press, 1976.

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