Proceedings of the Seventeenth General Assembly, Montreal, 1979 edited by Patrick A. Wayman.. - Dordrecht : Reidel, 1980. - x,526 p. : 1port ; 26 cm. - Transactions of the International Astronomical Union v.17B. .

At head of title: International Astronomical Union


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International Astronomical Union.


Astronomy--Societies, etc.