00813nam a2200193Ia 4500003000900000008004100009040001600050080001800066111009800084245018600182260004200368300001200410490006500422650001400487650004100501650002100542700001900563710003700582IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a082.2:52bPER  aGeneral assembly of International Astronomical Unionn13thcCzechoslovakiad1967 Aug. 22 - 31 0aXIIIth General Assemblybproceedings of the 13th General Assembly Prague, Czechoslovakia, August 22 - 31, 1967cedited by L. Perek                                                     aDordrechtbD. Reidel Publishingc1968  aix,309p  aTransaction of the International Astronomical Union; v. XIII  aAstronomy  aAstronomy and Astrophysics Thesaurus  aIAU Transactions  aPerek, L., ed.  aInternational Astronomical Union