Levin, Harold L. The Earth through time / Levin L. Harold. - 5th ed. - Fort Worth : Saunders College Pub., c1996. - xvi, 607p. : col. ill. ; 28 cm. Glossary : p. G1 - G22. Includes index. ISBN: 0030051673 Subjects--Topical Terms: Historical geology--Textbooks.