000
00323nam a2200133Ia 4500
008
221221s9999 xx 000 0 und d
020
_a
8122408338
041
_a
ENG
082
_a
371.33
_b
KUM/E
100
_a
Kumar, K L
245
0
_a
Educational Technology
260
_a
New Delhi
_b
New Age International
_c
2003
942
_c
BK
999
_c
9344
_d
9344