Cita APA (7a ed.)

Pieper, J. (1971). La fe (2“ ed.). Rialp.

Cita Chicago Style (17a ed.)

Pieper, Josef. La Fe. 2“ ed. Madrid: Rialp, 1971.

Cita MLA (9a ed.)

Pieper, Josef. La Fe. 2“ ed. Rialp, 1971.