Trích dẫn APA

Ruthenberg,Hans. (1985). Innovation policy for small farmers in the tropics: The economics of technical innovation for agricultural development. Clarendon Press.

Trích dẫn kiểu Chicago

Ruthenberg,Hans. Innovation Policy for Small Farmers in the Tropics: The Economics of Technical Innovation for Agricultural Development. Oxford: Clarendon Press, 1985.

Trích dẫn MLA

Ruthenberg,Hans. Innovation Policy for Small Farmers in the Tropics: The Economics of Technical Innovation for Agricultural Development. Clarendon Press, 1985.

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