APA

Duffy R. O., . (1995). The Liturgy in the Catechism. New York: Geoffrey Chapman.

Chicago

Duffy Regis OFM, . 1995. The Liturgy in the Catechism. New York: Geoffrey Chapman.

Harvard

Duffy R. O., . (1995). The Liturgy in the Catechism. New York: Geoffrey Chapman.

MLA

Duffy Regis OFM, . The Liturgy in the Catechism. New York: Geoffrey Chapman. 1995.