APA Style
Penny, David Harry. (1965).
The transition from subsistence to commercial family farming in North Sumatra .
Ann Arbor:
University Microfilms Inc..
Chicago Style
Penny, David Harry.
The transition from subsistence to commercial family farming in North Sumatra.
Ann Arbor:
University Microfilms Inc.,
1965.
Hard Copy.
MLA Style
Penny, David Harry.
The transition from subsistence to commercial family farming in North Sumatra.
Ann Arbor:
University Microfilms Inc.,
1965.
Hard Copy.
Turabian Style
Penny, David Harry.
The transition from subsistence to commercial family farming in North Sumatra.
Ann Arbor:
University Microfilms Inc.,
1965.
Hard Copy.