林一清著. (2019). 有效社交:如何建立更有价值的人际关系:how to build more valuable relationships. 中国商业出版社.
Chicago (17e ed.) Bronvermelding林一清著. 有效社交:如何建立更有价值的人际关系:how to Build More Valuable Relationships. 中国商业出版社, 2019.
MLA (8e ed.) Bronvermelding林一清著. 有效社交:如何建立更有价值的人际关系:how to Build More Valuable Relationships. 中国商业出版社, 2019.
Let op: Deze citaties zijn niet altijd 100% accuraat.