Sen, Amartya K. The existence of a social welfare function : a critical survey / Amartya K. Sen - Delhi : Delhi School of Economics (DSE) , 1966 - 32p. : ill. ; 30 cm. - Working paper No. 5 . Includes bibliographical references. Subjects--Topical Terms: Social welfare Gov. Doc. Class. No.: IN Del. U DSE DE WP-5