Jiangnan Bookstore has the bookshelf I bought. Is it on the third or fourth floor? I forgot that the ground is full of reference books, English books, postgraduate entrance examination books and teaching materials. Go upstairs, turn right and look right.

Jiangnan Book City takes bus No.3 at the intersection of Jilin Street and hengshan road in Jiangnan High-tech Zone. Get off at No.31for Fengman District Government and No.33 for Finance School. You can also get off at Bayi and see the Bayi vegetable market opposite.

The appearance of Tongji Sixth Edition is light green in the upper part and white in the middle. The lower part of the sixth edition of advanced mathematics (Volume I and Volume II) is dark green. The top of the 11th Five-Year National Planning Textbook for General Higher Education compiled by the Department of Mathematics of Tongji University and the bottom of Higher Education Press are priced as follows: Volume I 27.60 Volume II 23.60.