Dyfyniad APA

龚勋 & 董明. (2009). 世界文明奇迹: Civiliaztion wonders of the world. 云南教育出版社.

Dyfyniad Arddull Chicago

龚勋 and 董明. 世界文明奇迹: Civiliaztion Wonders of the World. 云南教育出版社, 2009.

Dyfyniad MLA

龚勋 and 董明. 世界文明奇迹: Civiliaztion Wonders of the World. 云南教育出版社, 2009.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.