WARD JOHN. (1984). PROFITABLE PRODUCT MANAGEMENT. HEINEMANN.
Chicagoスタイル(17版)引用形式WARD JOHN. PROFITABLE PRODUCT MANAGEMENT. LONDON: HEINEMANN, 1984.
MLA(9版)引用形式WARD JOHN. PROFITABLE PRODUCT MANAGEMENT. HEINEMANN, 1984.
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APA(7版)引用形式