龚勋. (2009). 传奇宇宙奥秘: Mysteries of universe. 云南教育出版社.
Chicago Style (17th ed.) Citation龚勋. 传奇宇宙奥秘: Mysteries of Universe. 云南教育出版社, 2009.
MLA (8th ed.) Citation龚勋. 传奇宇宙奥秘: Mysteries of Universe. 云南教育出版社, 2009.
Warning: These citations may not always be 100% accurate.