000 00281nam a22001217a 4500
008 181221b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a510
100 _a36
101 _aMAT
245 _aMathematical Structures of Social Mobility
_cBoudon, R
942 _2udc
_cBK
999 _c53659
_d53659