APA Style
Theory U. (2009).
San Francisco:
Berrett-Koehler Publishers.
Chicago Style
Theory U.
.
San Francisco:
Berrett-Koehler Publishers,
2009.
.
MLA Style
Theory U.
.
San Francisco:
Berrett-Koehler Publishers,
2009.
.
Turabian Style
Theory U.
San Francisco:
Berrett-Koehler Publishers,
2009.
.