Heeg, A. J. (1944). The illustrated catechism. Catholic Mfg. Cc., Inc..
Chicago Style aipamenaHeeg, Aloysius Joseph. The Illustrated Catechism. New York, N.Y.: Catholic Mfg. Cc., Inc., 1944.
MLA aipamenaHeeg, Aloysius Joseph. The Illustrated Catechism. Catholic Mfg. Cc., Inc., 1944.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.