000			00537nam a22001577a 4500
008			230223b |||||||| |||| 00| 0 eng d
040			_aNational Science Library _cNational Science Library
080			_aD 002+002 _bL8
100			_aBhattacharyya, G _91197
245			_aInformation Science: _bA unified view through a systems approach
260			_aCalcutta: _bIndian Association of special libraries and information centres, _c1978
300			_a56p.
650			_aInformation science
653			_aSystem approach
942			_2udc _cBK
999			_c3480 _d3480