Lipsey, Richardly Economics / Richardly Lipsey, Douglas D. Purvis and Peter O. Steiner - 6th ed. - New York : Harper and Row Publishers, c1988. - xxix, 937, [50] p. ; ill. ; 26 cm. ISBN: 0060439122 LCCN: Subjects--Topical Terms: EconomicsPurvis LC Class. No.: L767c / . 1988