APA Style
Billings, W. D.. (1978).
Plants and the Ecosystem, Third Edition (3rd).
Belmont, California:
Wadsworth Publishing Company, Inc.
Chicago Style
Billings, W. D..
Plants and the Ecosystem, Third Edition.
3rd
Belmont, California:
Wadsworth Publishing Company, Inc,
1978.
Text.
MLA Style
Billings, W. D..
Plants and the Ecosystem, Third Edition.
3rd
Belmont, California:
Wadsworth Publishing Company, Inc,
1978.
Text.
Turabian Style
Billings, W. D..
Plants and the Ecosystem, Third Edition.
3rd
Belmont, California:
Wadsworth Publishing Company, Inc,
1978.
Print.