龚勋. (2012). 世界重大发明发现百科全书: Critical inventions and discoveries of the world. 汕头大学出版社.
Dyfyniad Arddull Chicago龚勋. 世界重大发明发现百科全书: Critical Inventions and Discoveries of the World. 汕头大学出版社, 2012.
Dyfyniad MLA龚勋. 世界重大发明发现百科全书: Critical Inventions and Discoveries of the World. 汕头大学出版社, 2012.
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