于洋. (2011). 谈判圣经: Negotiations bible. 中华工商联合出版社.
Chicago Style (17th ed.) Citation于洋. 谈判圣经: Negotiations Bible. 中华工商联合出版社, 2011.
MLA citiranje于洋. 谈判圣经: Negotiations Bible. 中华工商联合出版社, 2011.
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