CRAWFORD, C. (1991). New products management.-- ed.3. Irwin.
Chicagoスタイル(17版)引用形式CRAWFORD, C.Merle. New Products Management.-- Ed.3. Homewood: Irwin, 1991.
MLA(9版)引用形式CRAWFORD, C.Merle. New Products Management.-- Ed.3. Irwin, 1991.
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