000 00357nam a2200145Ia 4500
100 _aSingh/D./chaudhary
942 _cBK
654 _asample survey designs
245 _aTheory and analysis of sample survey designs
260 _bWILEY EASTERN LIMITED
_aNew Delhi
_c1989
082 _a1.422
_bSIN/CHA
300 _a380
546 _aENGLISH
999 _c27158
_d27158