APA Style
Freedman, Bill. (1989).
environmental ecology .
New York:
Academic press.
Chicago Style
Freedman, Bill.
environmental ecology.
New York:
Academic press,
1989.
Text.
MLA Style
Freedman, Bill.
environmental ecology.
New York:
Academic press,
1989.
Text.
Turabian Style
Freedman, Bill.
environmental ecology.
New York:
Academic press,
1989.
Print.