KRIPPENDORFF, KLAUS CONTENT ANALYSIS: AN INTRODUCTION TO ITS METHODOLOGY - 2ND ED. - CALIFORNIA CITY Estados Unidos SAGE PUBLICATIONS 2004 - 413 ISBN: 0761915451 LCCN: 52058 Subjects--Topical Terms: ANALISIS DE CONTENIDO (COMUNICACION)CALIDADMETODOLOGIA Dewey Class. No.: 401.41