Cita APA (7a ed.)

Heft, J. L. (1986). John XXII and Papal teaching authority. The Edwin Mellen Press.

Cita Chicago Style (17a ed.)

Heft, James L. John XXII and Papal Teaching Authority. Lewiston (New York) [etc.]: The Edwin Mellen Press, 1986.

Cita MLA (9a ed.)

Heft, James L. John XXII and Papal Teaching Authority. The Edwin Mellen Press, 1986.