Lasswell, Thomas E. Class and stratum : an introduction to concepts and research / [by] Thomas E. Lasswell. - Boston : Houghton Mifflin, [1965] Includes bibliographies. LCCN: 65006166 Subjects--Topical Terms: Social classes.Sociology. LC Class. No.: HT609 / .L3 Dewey Class. No.: 301.44