000			00512nam a22001937a 4500
999			_c20930 _d20930
003			OSt
008			190308b ||||| |||| 00| 0 eng d
082			_a025 _bG95D
100			_aGuha, B.
245			_aDocumentation and Information : services, techniques and systems
250			_a2nd rev. ed.
260			_aCalcutta _bWorld Press _c1983
300			_axiv,380p.
650			_aKnowledge
650			_aLibrary and Information Sciences
650			_aDocumentation
650			_aInformation
942			_2ddc _cBK