The Penguin book of the physical world / [co-ordinating editors, Sonya Larkin, Louise Bernbaum]. - [Harmondsworth, Eng.] : Kestrel Books, 1976. - ca. 350 p. : ill. (some col.) ; 22 cm. Includes index. ISBN: 072265202X : Subjects--Topical Terms: ScienceGeophysics LC Class. No.: Q162 Dewey Class. No.: 500.2