白云. (2014). 奇趣自然未解之谜: Unsolved mysteries of interesting nature. 北方妇女儿童出版社.
Cita Chicago Style (17a ed.)白云. 奇趣自然未解之谜: Unsolved Mysteries of Interesting Nature. 北方妇女儿童出版社, 2014.
Cita MLA (8a ed.)白云. 奇趣自然未解之谜: Unsolved Mysteries of Interesting Nature. 北方妇女儿童出版社, 2014.
Precaución: Estas citas no son 100% exactas.