000 00297nam a2200121Ia 4500
008 190415s9999 xx 000 0 und d
082 _aRS.018;
100 _aSinha, J.N.
245 0 _aEmployment patterns problems of classification and measurement
260 _c0
300 _a19p.
942 _cBK
999 _c13556
_d13556