00540nam a2200157Ia 4500003000900000008004100009040001600050080002100066110003100087245012400118260005900242300001500301490000800316650004000324650001800364IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a017:52-73bEIN.2  aEinstein Catalog Committee 0aEinstein observatory catalog of IPC x-ray sourcesbvol. 2cEinstein Catalog Committee                                    aCambridgebSmithsonian Astrophysical Observatoryc1990  aiii, 632p.  av.2  aCatalog-Imaging propotional counter  aX-Ray sources