00470nam a2200133Ia 4500003000900000008004100009040001600050100002700066245013200093260005700225650001700282650001600299700002100315IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  aSeares, Kapteyn, J. C. 0aMount wilson catalogue of photographic magnititudes in selected areascKapteyn, J. C Seares and P. J. Van Rhijn                  aWashingtonbCarnegie Institution of Washingtonc1930  aMagnititudes  aphotography  aVan Rhijn, P. J.