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.
Chicago Style (17th ed.) Citation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.
Cita 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.
Atenció: Aquestes cites poden no estar 100% correctes.