Cita APA (7a ed.)

Helm, P. (2002). The varieties of belief. Routledge.

Cita Chicago Style (17a ed.)

Helm, Paul. The Varieties of Belief. Oxfordshire, England: Routledge, 2002.

Cita MLA (8a ed.)

Helm, Paul. The Varieties of Belief. Routledge, 2002.