《Tetrabiblos》The PlanetsClaudius Ptolemy（Ashmand 英譯 1822）
Josephus says the name is derived from Afer (one of the posterity of Abraham by Cethurah), who is stated to have led an army into Libya, and to have established himself in the country.
段落 tetra-2-theplanets-73public-domain (Ashmand 1822)
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