000 00294nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a331.101.26
_bSIN
100 _aSINGH, R R
245 0 _aLabour economics
260 _aAgra
_bRam Mehra &Co
_c1971
650 _aLabour economics
942 _cBK
999 _c22656
_d22656