000 00340nam a22001337a 4500
020 _a9787530220184
082 _a915.1
100 _aNing Ken
245 _aZhongguancun Notes
_cNing Ken
260 _aBeijing
_bBeijing Publishing Group
_c2019
300 _a585p
942 _2ddc
_cBK
999 _c586563
_d586563