000 00285nam a2200109Ia 4500
008 170504s9999 xx 000 0 und d
100 _a"BHATTACHARYYA, B. K."
245 _aRESEARCH METHODOLOGY 254
250 _a-
260 _bEXCEL BOOKS
_a"A-45, NARAINA, PHASE I,NEW DELHI"
_c2006
300 _a399
440 _n-
999 _c30542
_d30542