APA
Harkx P., . (1968). The Fathers on Celibasy. De Pere: St. Norbert Abbey Press.
Chicago
Harkx Peter, . 1968. The Fathers on Celibasy. De Pere: St. Norbert Abbey Press.
Harvard
Harkx P., . (1968). The Fathers on Celibasy. De Pere: St. Norbert Abbey Press.
MLA
Harkx Peter, . The Fathers on Celibasy. De Pere: St. Norbert Abbey Press. 1968.
