000 00359nam a2200157 4500
008 160616s1983 000 0
245 _aPosts machine
100 _aUspensky, V.A
260 _aMoscow
260 _bMir publishers
260 _c1983
300 _a88
440 _aLIttle mathematics library
942 _cBK
_2BK26320
080 _a510.6 USP
999 _c26320
_d26320