丁兆宇. (2009). 戴尔·卡耐基人生成功思想全书: Collected edition of Dale Camegie's great theories of life. 新世界出版社.
Chicago (17e ed.) Bronvermelding丁兆宇. 戴尔·卡耐基人生成功思想全书: Collected Edition of Dale Camegie's Great Theories of Life. 新世界出版社, 2009.
MLA (8e ed.) Bronvermelding丁兆宇. 戴尔·卡耐基人生成功思想全书: Collected Edition of Dale Camegie's Great Theories of Life. 新世界出版社, 2009.
Let op: Deze citaties zijn niet altijd 100% accuraat.