Mosca, Gaetano. The ruling class : elementi di scienza politica / Gaetano Mosca, Edited and revised, with an introduction by Arthur Livingston & Translated by Hannah D. Kahn. - New York : McGraw-Hill , 1939 - xli, 514p. ; 23 cm. Includes bibliographical references and index. ISBN: 070434816 Subjects--Topical Terms: PoliticsIndustry Dewey Class. No.: 320 / MOS