The USSR Olympiad Problem Book: Selected Problems and Theore girro 2014年2月19日 15 阅读 0 评论 数学、统计 The USSR Olympiad Problem Book: Selected Problems and Theore by: D. O. Shklarsky, N. N. Chentzov, I. M. Yaglom, Publisher: Dover Publications Print length: 452 Publishing: 1993-09-28 代发服务PDF电子书10元立即求助