Cita APA (7th ed.)

Helm, P. (2008). Calvin: A guide for the perplexed. T & T Clark.

Cita Chicago (17th ed.)

Helm, Paul. Calvin: A Guide for the Perplexed. London ; New York: T & T Clark, 2008.

Cita MLA (9th ed.)

Helm, Paul. Calvin: A Guide for the Perplexed. T & T Clark, 2008.