00512nam a22001937a 4500 20930 20930 OSt 190308b ||||| |||| 00| 0 eng d 025 G95D Guha, B. Documentation and Information : services, techniques and systems 2nd rev. ed. Calcutta World Press 1983 xiv,380p. Knowledge Library and Information Sciences Documentation Information ddc BK 0 0 ddc 0 0 RAU RAU 1994-10-04 World Book Calcutta 130.00 0 025 G95D 44944 2019-03-08 2019-03-08 BK