Observatories in earth orbit and beyond :  proceedings of the 123rd Colloquium of the International Astronomical Union, held in Greenbelt, Maryland, April 24-27, 1990 / 
edited by Y. Kondo. 
 - Dordrecht, The Netherlands ;  Boston :  Kluwer Academic Publishers,  c1990. 
 - xii, 572 p. :  ill. ;  25 cm. 
 - Astrophysics and space science library ;  v. 166 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0792311337 
<br/><br/><label>LCCN: </label>91006568  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Orbiting astronomical observatories--Congresses.<br/>Astronomy--Congresses.<br/>Astrophysics--Congresses.
<br/><br/><label>LC Class. No.: </label>QB500.267  / .I56 1990 
<br/><br/><label>Dewey Class. No.: </label>522/.1919