000			00420 a2200169 4500
008			250220b |||||||| |||| 00| 0 eng d
020			_a978-81-7391-576-8
041			_aeng
084			_a362.41/Sin
100			_aSingh, J. P.
245			_aTechnology for the blind : concept and context
260			_aNew Delhi _bKanishka _c2003
300			_axvi,271 _bHb
526			_a2
942			_cBK
999			_c426419 _d426419