APA Style
RICH, Robert F.. (1981).
The knowledge cycle .
London:
Sage Publications.
Chicago Style
RICH, Robert F..
The knowledge cycle.
London:
Sage Publications,
1981.
Text.
MLA Style
RICH, Robert F..
The knowledge cycle.
London:
Sage Publications,
1981.
Text.
Turabian Style
RICH, Robert F..
The knowledge cycle.
London:
Sage Publications,
1981.
Print.