000 00525nam a22001577a 4500
008 230705b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aD 025.5
_bP5
100 _aTripathi, S M
245 _aसूचना सन्दर्भ के प्रमुख स्रोत
246 _aSoochna sandarbh ke pramukh srot
260 _aAgra:
_bY K Publishers,
_c2005
300 _a344p.
650 _aLibrary science
942 _2udc
_cHBK
999 _c50851
_d50851