Gaya APA
Essentials of Ecology, Fifth Edition. (2008).
New York:
CENGAGE LEARNING.
Gaya Chicago
Essentials of Ecology, Fifth Edition.
.
New York:
CENGAGE LEARNING,
2008.
Text.
Gaya MLA
Essentials of Ecology, Fifth Edition.
.
New York:
CENGAGE LEARNING,
2008.
Text.
Gaya Turabian
Essentials of Ecology, Fifth Edition.
New York:
CENGAGE LEARNING,
2008.
Print.