Donaldson, Peter. Worlds apart : the economic gulf between nations / Peter Donaldson. - Harmondsworth : Penguin, 1978. - 203p Standard No.: 7615 [old SOUL v1.0 record id] Subjects--Topical Terms: International EconomicsEconomic developmentInequality (economics) Dewey Class. No.: PD 337 / D 1 w