000
00239nam a2200085Ia 4500
008
170620s9999 xx 000 0 und d
100
_a
Aggarwal- J. C.
245
0
_a
Educational Technology Management and Evaluation
260
_b
Agra- Vinod Pustak Mandir
260
_c
2004
999
_c
24979
_d
24979