Graham, B. (1983). Approaching hoofbeats: The four horsemen of the apocalypse. Word.
Tohutoru Kātū Chicago (17th ed.)Graham, Billy. Approaching Hoofbeats: The Four Horsemen of the Apocalypse. Waco: Word, 1983.
Tohutoro MLA (9th ed.)Graham, Billy. Approaching Hoofbeats: The Four Horsemen of the Apocalypse. Word, 1983.
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