Hartmann, William K.
Astronomy : the cosmic journey / William K. Hartmann. - 4th ed. - Belmont, Calif. : Wadsworth, c1989. - xx, 694 p. : ill. ; 25 cm.
Includes bibliographical references and index.
0534095763
88014815
Astronomy.
QB45 / .H32 1989
520 / HAA
Astronomy : the cosmic journey / William K. Hartmann. - 4th ed. - Belmont, Calif. : Wadsworth, c1989. - xx, 694 p. : ill. ; 25 cm.
Includes bibliographical references and index.
0534095763
88014815
Astronomy.
QB45 / .H32 1989
520 / HAA