APA Style
Willoughby, Stephen S. (1981).
Real Math .
USA:
Open Court Publishing Company.
Chicago Style
Willoughby, Stephen S.
Real Math.
USA:
Open Court Publishing Company,
1981.
Text.
MLA Style
Willoughby, Stephen S.
Real Math.
USA:
Open Court Publishing Company,
1981.
Text.
Turabian Style
Willoughby, Stephen S.
Real Math.
USA:
Open Court Publishing Company,
1981.
Print.