Gaya APA

Fitzgerald, M, L, /, C, R. (1992). Signs of dialogue: Christian encounter with Muslims. . Zamboanga City: Zamboanga City Silsilah Publ.

Gaya MLA

Fitzgerald, Michael, L., /, Caspar,, Robert. "Signs of dialogue: Christian encounter with Muslims. ". Zamboanga City: Zamboanga City Silsilah Publ, 1992. Buku.