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China statistical yearbook on science and technology
Bei jing : Zhong guo tong ji chu ban she; 北京 : … - Nachgewiesen 1991(1992) -
Persistent link: https://www.econbiz.de/10000607987
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China statistical yearbook on science and technology
Bei jing : Zhong guo tong ji chu ban she; Bei jing : …; … - 2008 -
Persistent link: https://www.econbiz.de/10003866140
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Guangdong-keji-nianjian
Guangdong : People's Publ. House - Nachgewiesen 2006(2007) -
Persistent link: https://www.econbiz.de/10003578581
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Dehan keji changyong cihui
1979
Persistent link: https://www.econbiz.de/10003523960