APA

O'Collins G., Edward G. Farrugia, .A concise dictionary of theology. New York: .

Chicago

O'Collins Gerald, Edward G. Farrugia, .A concise dictionary of theology. New York: .

Harvard

O'Collins G., Edward G. Farrugia, .A concise dictionary of theology. New York: .

MLA

O'Collins Gerald, Edward G. Farrugia, .New York: . .