Padilla, Michael J. Prentice Hall Science Explorer / Michael J. Padilla and Pearson/Prentice Hall - 3rd ed. - Needham: Pearson Prentice Hall, ©2005 - vol. 15: col. ill. ; 29 cm. Includes index. ISBN: 0131257897 Subjects--Topical Terms: Earth science Dewey Class. No.: 500