求6本电子书，每本1500金，嫌少的话继续追加金币，只要原版pdf或者azw4，不要其他格式，上传附件者，请同时上传截图
1.Introduction to Number Theory, 2nd Edition
http://www.amazon.com/dp/B0185JFYKI/ref=cm_sw_su_dp

2. Ordinary Differential Equations: An Introduction to the Fundamentals (Textbooks in Mathematics)
http://www.amazon.com/dp/B018TVG1EU/ref=cm_sw_su_dp

3. Mathematical Statistics: Basic Ideas and Selected Topics, Volume I
http://www.amazon.com/Mathematical-Statistics-Selected-Chapman-Statistical-ebook/dp/B00VHPBXXU/ref=sr_1_2?s=digital-text&ie=UTF8&qid=1452652392&sr=1-2&keywords=Mathematical+Statistics%3A+Basic+Ideas+and+Selected+Topics

4. Mathematical Statistics: Basic Ideas and Selected Topics, Volume II
http://www.amazon.com/Mathematical-Statistics-Selected-Chapman-Statistical/dp/1498722687/ref=sr_1_13?s=books&ie=UTF8&qid=1452524565&sr=1-13&refinements=p_45%3A10%2Cp_46%3AAfter%2Cp_47%3A2015%2Cp_30%3ACRC

5.  Statistics for Engineering and the Sciences, Sixth Edition
http://www.amazon.com/Statistics-Engineering-Sciences-William-Mendenhall/dp/1498728855/ref=sr_1_19?s=books&ie=UTF8&qid=1452524565&sr=1-19&refinements=p_45%3A10%2Cp_46%3AAfter%2Cp_47%3A2015%2Cp_30%3ACRC

6. Fundamentals of Probability: with Stochastic Processes, Third Edition
http://www.amazon.com/Fundamentals-Probability-Stochastic-Processes-Third/dp/1498755011/ref=sr_1_26?s=books&ie=UTF8&qid=1452524651&sr=1-26&refinements=p_45%3A10%2Cp_46%3AAfter%2Cp_47%3A2015%2Cp_30%3ACRC