000
00253nam a2200109Ia 4500
008
220201s1996 xx 000 0 eng d
100
_a
VENKATAINH N
245
0
_a
EDUCATIONAL TECHNOLOGY
260
_a
DELHI
_b
APH PUB
_c
1996
300
_a
234
942
_2
ddc
999
_c
91757
_d
91757