Penggayaan APA
CALLAN, Scott J., THOMAS, Janet M.. (1996).
Environmental economics and management .
New York:
McGraw Hill.
Chicago Style
CALLAN, Scott J., THOMAS, Janet M..
Environmental economics and management.
New York:
McGraw Hill,
1996.
Buku.
MLA Style
CALLAN, Scott J., THOMAS, Janet M..
Environmental economics and management.
New York:
McGraw Hill,
1996.
Buku.
Turabian Style
CALLAN, Scott J., THOMAS, Janet M..
Environmental economics and management.
New York:
McGraw Hill,
1996.
Buku.