Astronomy & astrophysics / edited by Morton S. Roberts. Astronomy and astrophysics. Roberts, Morton S. Astronomy. Astrophysics. Q181.A1 A68 no. 84-5 QB51 520 19 ROA Includes bibliographies and index. Washington, D.C. : American Association for the Advancement of Science, c1985. c1985. 1985 Text vii, 383 p. : eng AAAS publication ; 84-5