桑玠. (2017). 赤道与北极星: Equator and the polestar. 百花洲文艺出版社.
Chicago Style (17th ed.) Citation桑玠. 赤道与北极星: Equator and the Polestar. 百花洲文艺出版社, 2017.
MLA citiranje桑玠. 赤道与北极星: Equator and the Polestar. 百花洲文艺出版社, 2017.
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