Penggayaan APA
GILL, Gerad J. (1991).
Seasonality and agriculture in the developing world : .
New York:
Cambridge University Press.
Chicago Style
GILL, Gerad J.
Seasonality and agriculture in the developing world :.
New York:
Cambridge University Press,
1991.
Text.
MLA Style
GILL, Gerad J.
Seasonality and agriculture in the developing world :.
New York:
Cambridge University Press,
1991.
Text.
Turabian Style
GILL, Gerad J.
Seasonality and agriculture in the developing world :.
New York:
Cambridge University Press,
1991.
Print.