APA-referens (7:e uppl.)

Isaac, N. B. (1998). Centennial of Knights of Columbus. Manila Bulletin.

Chicago-referens (17:e uppl.)

Isaac, Norman B. "Centennial of Knights of Columbus." Manila Bulletin 1998.

MLA-referens (9:e uppl.)

Isaac, Norman B. "Centennial of Knights of Columbus." Manila Bulletin, 1998.