00500nam a2200157Ia 4500003000900000008004100009020001800050040001600068080001900084100001900103245010600122260004800228300001700276650003100293650001800324IN-BaIIA211028s9999    xx            000 0 eng d  a0-521-55345-8  cIIA Library  a520.1(73)bEDM  aEdmondson, F K 0aAURA and its US national observatoriescF. K. Edmondson                                                aCambridgebCambridge University Pressc1997  axviii, 367p.  aAstronomical observatories  aObservatories