熊莹莹 & 王宝剑. (2009). 陆地和水: Land and water. 人民武警出版社.
Chicago Style (17th ed.) Citation熊莹莹 and 王宝剑. 陆地和水: Land and Water. 人民武警出版社, 2009.
MLA (8th ed.) Citation熊莹莹 and 王宝剑. 陆地和水: Land and Water. 人民武警出版社, 2009.
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