Astronomy :
Hartmann, William K.
Astronomy : the cosmic journey / William K. Hartmann. - 4th ed. - Belmont, Calif. : Wadsworth Pub. Co., c1989. - xx, 694 p., [4] p. of plates : col. ill. ; 25 cm.
Includes index.
Bibliography: p. 673-683.
0534095763
Astronomy.
520
Astronomy : the cosmic journey / William K. Hartmann. - 4th ed. - Belmont, Calif. : Wadsworth Pub. Co., c1989. - xx, 694 p., [4] p. of plates : col. ill. ; 25 cm.
Includes index.
Bibliography: p. 673-683.
0534095763
Astronomy.
520