APA Style
Petri, Herbert L.. (1981).
Motivation : Theory and Research .
California:
Wadsworth Publishing Company.
Chicago Style
Petri, Herbert L..
Motivation : Theory and Research.
California:
Wadsworth Publishing Company,
1981.
Text.
MLA Style
Petri, Herbert L..
Motivation : Theory and Research.
California:
Wadsworth Publishing Company,
1981.
Text.
Turabian Style
Petri, Herbert L..
Motivation : Theory and Research.
California:
Wadsworth Publishing Company,
1981.
Print.