000 00271nam a2200097Ia 4500
008 150310s9999 xx 000 0 und d
100 _a"SUKHIG, P V MELHOTRA & MEHROTRA R N"
245 _aELEMENTS OF EDUCATIONAL RESEARCH
250 _a3
260 _c1989
_bALLIED PUBLISHERS
999 _c15166
_d15166