000 00516nam a22001697a 4500
008 230313b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aD 025.45
_bL9
245 _aUniversal decimal classification
_c/ British Standard Institution
260 _aLondon:
_bBritish Standard Institution,
_c1979
300 _a30p.
500 _aBS 1000[58] : 1979
650 _aLibrary science
653 _aClassification
653 _aStandards
942 _2udc
_cISD
999 _c8084
_d8084