Cita APA (7a ed.)
Graham, B. (1983). Approaching hoofbeats: The four horsemen of the apocalypse. Word.
Cita Chicago Style (17a ed.)
Graham, Billy. Approaching Hoofbeats: The Four Horsemen of the Apocalypse. Waco: Word, 1983.
Cita MLA (9a ed.)
Graham, Billy. Approaching Hoofbeats: The Four Horsemen of the Apocalypse. Word, 1983.
Precaución: Estas citas no son 100% exactas.