APA-viite (7. p.)

Heeg, A. J. (1944). The illustrated catechism. Catholic Mfg. Cc., Inc..

Chicago-viite (17. p.)

Heeg, Aloysius Joseph. The Illustrated Catechism. New York, N.Y.: Catholic Mfg. Cc., Inc., 1944.

MLA-viite (8. p.)

Heeg, Aloysius Joseph. The Illustrated Catechism. Catholic Mfg. Cc., Inc., 1944.