Cita APA (7th ed.)

Graham, B. (1983). Approaching hoofbeats: The four horsemen of the apocalypse. Word.

Cita Chicago (17th ed.)

Graham, Billy. Approaching Hoofbeats: The Four Horsemen of the Apocalypse. Waco: Word, 1983.

Cita MLA (9th ed.)

Graham, Billy. Approaching Hoofbeats: The Four Horsemen of the Apocalypse. Word, 1983.