Gaya APA
Perman, Roger. (2003).
Natural Resource and Environmental Economics (Ed. 3, Cet. 10).
New Jersey:
Pearson Prentice Hall.
Gaya Chicago
Perman, Roger.
Natural Resource and Environmental Economics .
Ed. 3, Cet. 10
New Jersey:
Pearson Prentice Hall,
2003.
TANDON.
Gaya MLA
Perman, Roger.
Natural Resource and Environmental Economics .
Ed. 3, Cet. 10
New Jersey:
Pearson Prentice Hall,
2003.
TANDON.
Gaya Turabian
Perman, Roger.
Natural Resource and Environmental Economics .
Ed. 3, Cet. 10
New Jersey:
Pearson Prentice Hall,
2003.
TANDON.