APA Style
Ruthenberg, Hans. (1976).
Farming Systems in the Tropics (Second Edition).
Oxford:
Clarendon Press oxford.
Chicago Style
Ruthenberg, Hans.
Farming Systems in the Tropics.
Second Edition
Oxford:
Clarendon Press oxford,
1976.
Print.
MLA Style
Ruthenberg, Hans.
Farming Systems in the Tropics.
Second Edition
Oxford:
Clarendon Press oxford,
1976.
Print.
Turabian Style
Ruthenberg, Hans.
Farming Systems in the Tropics.
Second Edition
Oxford:
Clarendon Press oxford,
1976.
Print.