Cita APA (7th ed.)

Jeffrey, G. R. (1988). Armageddon ; Appointment whit destiny. Frontier Research.

Cita Chicago (17th ed.)

Jeffrey, Grant R. Armageddon ; Appointment Whit Destiny. Ontario: Frontier Research, 1988.

Cita MLA (9th ed.)

Jeffrey, Grant R. Armageddon ; Appointment Whit Destiny. Frontier Research, 1988.