000
00289nam a2200121Ia 4500
100
_a
Sampath,K.
942
_c
BK
245
_a
Introduction to educational technology
260
_a
New Delhi
_b
Sterling Pub Pvt. Ltd
_c
1981
082
_a
371.3
_b
Sam
300
_a
viii,293
546
_a
English
999
_c
337666
_d
337666
041
_a
eng