Cita APA (7a ed.)

龚勋 & 房明. (2009). 世界重大发明发现百科全书: Critical inventions and discoveries of the world. 云南教育出版社.

Cita Chicago Style (17a ed.)

龚勋 y 房明. 世界重大发明发现百科全书: Critical Inventions and Discoveries of the World. 云南教育出版社, 2009.

Cita MLA (8a ed.)

龚勋 y 房明. 世界重大发明发现百科全书: Critical Inventions and Discoveries of the World. 云南教育出版社, 2009.