Lipsey, Richard G. Introduction to positive economics Richard G. Lipsey - 3rd ed. - London English Language Book Society and Weidenfeld and Nicolson 1974 - xx,740p.; 24cm. Contents: 6th ed.Also 8th edition ISBN: 029778665 Subjects--Topical Terms: EconomicsEconomics TheoryDemand and supply Dewey Class. No.: 330 / LIP