Penggayaan APA
FIELD, Barry C.. (2009).
Environmental economics (5th ed.).
New York:
McGraw Hill.
Chicago Style
FIELD, Barry C..
Environmental economics.
5th ed.
New York:
McGraw Hill,
2009.
Buku.
MLA Style
FIELD, Barry C..
Environmental economics.
5th ed.
New York:
McGraw Hill,
2009.
Buku.
Turabian Style
FIELD, Barry C..
Environmental economics.
5th ed.
New York:
McGraw Hill,
2009.
Buku.