00717nam a2200205Ia 4500003000900000008004100009040001600050080002200066245008900088260004100177300002300218650004100241650002600282650002900308700002800337700002600365942000700391999001500398952009800413IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a524.7(082.1)bOBS 0aObservational aspects of galactic structurec edited by A. Blaauw and L.N. Mavridis.  aAthensbNATO Science Committeec1965  a[various pagings.]  aAstronomy and astrophysics thesaurus  aGalactic nuclei93453  aGalactic structure93050  a Mavridis, L. N.94736  aBlaauw, A., ed.92911  cBK  c2658d2658  00104070aBANbBANcGENd1966-04-13l0o524.7(082.1)/ OBSp2965r2021-11-05w1966-04-13yBK