Roskin Michael 1939 Countries and concepts : an introduction to comparative politics / Michael G. Roskin. - 6th ed. - Upper Saddle River, NJ : Prentice Hall, c1998. - xxiv, 504 p. : ill., maps ; 24 cm. Includes bibliographical references and index. ISBN: 0136252451 LCCN: 97023780 Subjects--Topical Terms: Comparative government LC Class. No.: JF51 Dewey Class. No.: 320.3