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024 _a88826
037 _cTextbook
040 _aCRL
_cCRL
_beng
041 _2eng
_aeng
082 _a2:5(X5)'N79<-N45, L9
100 _aChitty Mary Glen
_9558498
245 0 _cChitty Mary Glen
_aNTIS
_b concepts of the clearinghouse, 1945-1979
260 _aVirginia
_bU.S.Department of Commerce USA
_c1979
300 _a68p.
_ccm.
650 _aLIBRARY SCIENCE
942 _h2:5(X5)'N79<-N45, L9
_cTB
_2CC
999 _c891364
_d891364