Hodge, Paul W. Concepts of contemporary astronomy / Paul W. Hodge. - 2nd ed. - New York : McGraw-Hill, c1979. Includes index. Bibliography: p. 498-499. ISBN: LCCN: 78016990 Subjects--Topical Terms: Astronomy. LC Class. No.: QB45 / .H68 1979 Dewey Class. No.: 520