000
00311nam a2200145Ia 4500
008
220421s9999||||xx |||||||||||||| ||und||
020
_c
200
040
_a
ET
100
_a
S.C SINHA
245
0
_a
RESEARCH METHODOLOGY
260
_b
ESS-ESS PUB.
_a
NEW DELHI
300
_a
469
500
_a
14582
942
_c
BK
999
_c
20825
_d
20825