卡内基 & 李会丹. (2011). 跟卡耐基学口才: Quick and easy way to effective speaking. 印刷工业出版社.
Chicago Style (17th ed.) Citation卡内基 i 李会丹. 跟卡耐基学口才: Quick and Easy Way to Effective Speaking. 印刷工业出版社, 2011.
Cita MLA卡内基 i 李会丹. 跟卡耐基学口才: Quick and Easy Way to Effective Speaking. 印刷工业出版社, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.