关注微信公众号查券更方便
【4周达】The Ethnomathematics of Tinsmiths in the Optimization of trays and cylindical cans [9786139981243]
![【4周达】The Ethnomathematics of Tinsmiths in the Optimization of trays and cylindical cans [9786139981243]](/Public/skin2/static/tqkpc/images/grey.gif)