Roth, C. (1960). The treasuray of sure fire selling. Prentice hall.
シカゴスタイル引用形Roth, Charles.B. The Treasuray of Sure Fire Selling. New Jersey: Prentice hall, 1960.
MLA引用形式Roth, Charles.B. The Treasuray of Sure Fire Selling. Prentice hall, 1960.
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