APA引文

O'Brien, J. A. Frequent Holy Communion--why?: God's supreme gift to man. [publisher not identified].

Chicago Style (17th ed.) Citation

O'Brien, John A. Frequent Holy Communion--why?: God's Supreme Gift to Man. [Place of publication not identified]: [publisher not identified].

MLA引文

O'Brien, John A. Frequent Holy Communion--why?: God's Supreme Gift to Man. [publisher not identified].