Cita APA (7a ed.)

Voll, J. O. (2011). The Challenge of the Believing Intellectual. International Institute of Islamic Thought.

Cita Chicago Style (17a ed.)

Voll, John O. The Challenge of the Believing Intellectual. International Institute of Islamic Thought, 2011.

Cita MLA (8a ed.)

Voll, John O. The Challenge of the Believing Intellectual. International Institute of Islamic Thought, 2011.