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.
Chicago Style (17th ed.) Citation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.
MLA citiranje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.
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