WARD JOHN. (1984). PROFITABLE PRODUCT MANAGEMENT. HEINEMANN.
芝加哥风格引文WARD JOHN. PROFITABLE PRODUCT MANAGEMENT. LONDON: HEINEMANN, 1984.
MLA引文WARD JOHN. PROFITABLE PRODUCT MANAGEMENT. HEINEMANN, 1984.
警告：这些引文格式不一定是100％准确.
APA引文