龚勋. (2012). 最不可思议的军事未解之谜: Incredible unsolved military mysteries. 汕头大学出版社.
Chicago Style (17th ed.) Citation龚勋. 最不可思议的军事未解之谜: Incredible Unsolved Military Mysteries. 汕头大学出版社, 2012.
MLA citiranje龚勋. 最不可思议的军事未解之谜: Incredible Unsolved Military Mysteries. 汕头大学出版社, 2012.
Opozorilo: Ti citati niso vedno 100% točni.