ISBN-13: 9789027726575 / Angielski / Twarda / 1988 / 470 str.
ISBN-13: 9789027726575 / Angielski / Twarda / 1988 / 470 str.
Proceedings of the 128th Symposium of the International Astronomical Union, held in Coolfont, West Virginia, USA, October 20-24, 1986.