Gaya APA
Field, Barry C.. (2000).
Natural Resource Economic An Introduction .
Singapore:
McGaw-Hill.
Gaya Chicago
Field, Barry C..
Natural Resource Economic An Introduction.
Singapore:
McGaw-Hill,
2000.
Teks.
Gaya MLA
Field, Barry C..
Natural Resource Economic An Introduction.
Singapore:
McGaw-Hill,
2000.
Teks.
Gaya Turabian
Field, Barry C..
Natural Resource Economic An Introduction.
Singapore:
McGaw-Hill,
2000.
Teks.