Multiple periodic variable stars proceedings of the International Astronomical Union Colloquium no. 29 held at Budapest, Hungary, 1-5 September 1975 : invited papers
International Astronomical Union Colloquium Budapest, Hungary) 1975 Walter S Fitch 1926-; International Astronomical Union
Dordrecht, Holland D. Reidel Pub. Co. Boston c1976
Multiple periodic variable stars proceedings of the International Astronomical Union colloquium no. 29, held at Budapest, Hungary, 1-5 September 1975 : contributed papers
International Astronomical Union. Colloquium Walter S Fitch 1926; International Astronomical Union