000 00333nam a22001457a 4500
003 SGT
020 _a81-7391-576-8
082 _a371.911
_bSIN
100 _aSINGH DR J P
245 _aTECHNOLOGY FOR THE BLIND CONCEPT & CONTEXT
260 _aKANISHKA PUB NEW DELHI
_c2020
300 _a271
650 _aEDUCATION
942 _2ddc
_cBK
999 _c23165
_d23165