APA Style
Ruthenberg,Hans.. (1980).
Farming systems in the tropics. (3rd ed).
USA:
Oxford at the claredon press.
Chicago Style
Ruthenberg,Hans..
Farming systems in the tropics..
3rd ed
USA:
Oxford at the claredon press,
1980.
Texts.
MLA Style
Ruthenberg,Hans..
Farming systems in the tropics..
3rd ed
USA:
Oxford at the claredon press,
1980.
Texts.
Turabian Style
Ruthenberg,Hans..
Farming systems in the tropics..
3rd ed
USA:
Oxford at the claredon press,
1980.
Texts.