Pyatt, Graham On the interpretation and diasggregation of Gini co-efficiency / [by] Graham Pyatt - Washington, D.C. : IBRD , 1976. - 243-255 p. ; 26 cm - World Bank Reprint series; no. 38. . Reprinted from the economic journal 86 (June 1976). Subjects--Topical Terms: Elasticity (Economics)