Cita APA (7th ed.)

Williams, G. (1973). The contemporany catholic catechism (1a. ed.). Catholic Bookstore.

Cita Chicago (17th ed.)

Williams, Gerald. The Contemporany Catholic Catechism. 1a. ed. Nashville: Catholic Bookstore, 1973.

Cita MLA (9th ed.)

Williams, Gerald. The Contemporany Catholic Catechism. 1a. ed. Catholic Bookstore, 1973.