龚勋. (2009). 世界之最: Complete book of the world records. 云南教育出版社.
Citación estilo Chicago龚勋. 世界之最: Complete Book of the World Records. 云南教育出版社, 2009.
Cita MLA龚勋. 世界之最: Complete Book of the World Records. 云南教育出版社, 2009.
警告：这些引文格式不一定是100％准确.
Cita APA