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.
Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (8ú heag.)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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.