American Psychological Association
Hertling, Ludwig, & Kirschbaum, Engelbert, & Costelloe, Joseph ( 1960 ). Roman Catacombs and Their Martyrs ( 00 ed. ). Longman & Todd Ltd.
Modern Language Association
Hertling, Ludwig and Kirschbaum, Engelbert and Costelloe, Joseph. Roman Catacombs and Their Martyrs . Longman & Todd Ltd. 1960
Chicago Citation
Hertling, Ludwig and Kirschbaum, Engelbert and Costelloe, Joseph. Roman Catacombs and Their Martyrs . 00 .London
: Longman & Todd Ltd, 1960.
American Medical Association
Hertling, Ludwig and Kirschbaum, Engelbert and Costelloe, Joseph. Roman Catacombs and Their Martyrs . Longman & Todd Ltd; 1960.
