Penggayaan APA
PEARCE,David w. (1990).
Economics of natural resources and the environment .
New York:
Harvester Wheatsheaf.
Chicago Style
PEARCE,David w.
Economics of natural resources and the environment.
New York:
Harvester Wheatsheaf,
1990.
Text.
MLA Style
PEARCE,David w.
Economics of natural resources and the environment.
New York:
Harvester Wheatsheaf,
1990.
Text.
Turabian Style
PEARCE,David w.
Economics of natural resources and the environment.
New York:
Harvester Wheatsheaf,
1990.
Print.