O'Hagan, A. P. (1968). Material Re-Creation in the Apostolic Fathers: By Angelo P. O'Hagan OFM. Akademie-Verl..
Čikaški stil citiranja (17. izdanje)O'Hagan, Angelo P. Material Re-Creation in the Apostolic Fathers: By Angelo P. O'Hagan OFM. Berlin: Akademie-Verl., 1968.
MLA način citiranja (8. izdanje)O'Hagan, Angelo P. Material Re-Creation in the Apostolic Fathers: By Angelo P. O'Hagan OFM. Akademie-Verl., 1968.
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