Nag, Ashok Kumar Theories of social classes / Ashok Kumar Nag - Trivandrum : Centre for Development Studies (CDS) , 1983 - 30p. : ill. ; 30 cm. - CDS working paper No. 173 . Includes bibliographical references. Subjects--Topical Terms: Economic theorySocial class Gov. Doc. Class. No.: IN CDS Wp-173