000 00479nam a22001697a 4500
008 230323b |||||||| |||| 00| 0 eng d
020 _a0-89006-597-7
040 _aNational Science Library
_cNational Science Library
080 _aD 681.3.06X.400
_bN3
100 _aBetanov, Cemil
_94643
245 _aIntroduction to X.400
260 _aBoston:
_bArtech House,
_c1993
300 _a388p.
650 _aIntroduction
653 _aElectronic messaging
942 _2udc
_cBK
999 _c13544
_d13544