International Astronomical Union. Colloquium (123rd : 1990 : Greenbelt, Md.)
Title:
Observatories in earth orbit and beyond : proceedings of the 123rd Colloquium of the International Astronomical Union, held in Greenbelt, Maryland, U.S.A., April 24-27, 1990 / edited by Y. Kondo.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.