龚勋. (2012). 感恩生活: Surprising wonders of life will give us strength for ever. 汕头大学出版社.
Chicago (17e ed.) Bronvermelding龚勋. 感恩生活: Surprising Wonders of Life Will Give Us Strength for Ever. 汕头大学出版社, 2012.
MLA (8e ed.) Bronvermelding龚勋. 感恩生活: Surprising Wonders of Life Will Give Us Strength for Ever. 汕头大学出版社, 2012.
Let op: Deze citaties zijn niet altijd 100% accuraat.