Gaya APA
Upton, Martin. (1996).
The economics of tropical farming systems (text).
New York:
Cambridge UP.
Gaya Chicago
Upton, Martin.
The economics of tropical farming systems.
text
New York:
Cambridge UP,
1996.
.
Gaya MLA
Upton, Martin.
The economics of tropical farming systems.
text
New York:
Cambridge UP,
1996.
.
Gaya Turabian
Upton, Martin.
The economics of tropical farming systems.
text
New York:
Cambridge UP,
1996.
.