于永玉 & 秦向东. (2012). 知·自知知人. 天津人民出版社.
Chicago Style (17th ed.) Citation于永玉 and 秦向东. 知·自知知人. 天津人民出版社, 2012.
MLA (8th ed.) Citation于永玉 and 秦向东. 知·自知知人. 天津人民出版社, 2012.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation