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スタイル(17版)引用形式龚勋. 感恩生活: Surprising Wonders of Life Will Give Us Strength for Ever. 汕头大学出版社, 2012.
MLA(8版)引用形式龚勋. 感恩生活: Surprising Wonders of Life Will Give Us Strength for Ever. 汕头大学出版社, 2012.
警告: この引用は必ずしも正確ではありません.