Gaya APA
Kellert, Stephen R. (1997).
Macmillan encyclopedia of the environment.vol 1 (vol. 1).
New York:
Simon & Schuster macmillan.
Gaya Chicago
Kellert, Stephen R.
Macmillan encyclopedia of the environment.vol 1.
vol. 1
New York:
Simon & Schuster macmillan,
1997.
.
Gaya MLA
Kellert, Stephen R.
Macmillan encyclopedia of the environment.vol 1.
vol. 1
New York:
Simon & Schuster macmillan,
1997.
.
Gaya Turabian
Kellert, Stephen R.
Macmillan encyclopedia of the environment.vol 1.
vol. 1
New York:
Simon & Schuster macmillan,
1997.
.