APA Style
HELM, Paul. (1973).
The varieties of belief .
London:
George Allen.
Chicago Style
HELM, Paul.
The varieties of belief.
London:
George Allen,
1973.
Text.
MLA Style
HELM, Paul.
The varieties of belief.
London:
George Allen,
1973.
Text.
Turabian Style
HELM, Paul.
The varieties of belief.
London:
George Allen,
1973.
Print.