000 00437nam a22001217a 4500
008 230310b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aD 025.3(026)
_bK9
245 _aMARC manuals used by the library of congress:
_bPrepared by the information systems office, Library of Congress
_c/ ALA
260 _aChicago:
_bALA,
_c1969
650 _aLibrary science
942 _2udc
_cBK
999 _c7550
_d7550