APA Style
W.B.Clapham, Jr.. (1981).
Human Ecosystems .
New York:
MacMillan Publishing.
Chicago Style
W.B.Clapham, Jr..
Human Ecosystems.
New York:
MacMillan Publishing,
1981.
Text.
MLA Style
W.B.Clapham, Jr..
Human Ecosystems.
New York:
MacMillan Publishing,
1981.
Text.
Turabian Style
W.B.Clapham, Jr..
Human Ecosystems.
New York:
MacMillan Publishing,
1981.
Print.