库珀 & 郭峰. (2010). 不要开口就错: Just ask the right questions to get what you want. 东方出版社.
Chicago Style (17th ed.) Citation库珀 i 郭峰. 不要开口就错: Just Ask the Right Questions to Get What You Want. 东方出版社, 2010.
Cita MLA库珀 i 郭峰. 不要开口就错: Just Ask the Right Questions to Get What You Want. 东方出版社, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.