FORSYTH PATRICK. (2004). MARKETING & SELLING PROFESSIONAL SERVICES (3RD.). KOGAN PAGE.
Chicagoスタイル(17版)引用形式FORSYTH PATRICK. MARKETING & SELLING PROFESSIONAL SERVICES. 3RD. LONDON: KOGAN PAGE, 2004.
MLA(9版)引用形式FORSYTH PATRICK. MARKETING & SELLING PROFESSIONAL SERVICES. 3RD. KOGAN PAGE, 2004.
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