Dwivedi, D. N. Managerial economics / D.N. Dwivedi. - 6th Rev. ed. - Ghaziabad, India : Vikas Pub. House, c1980. - xxiv, 650 p. : ill.,figs.,tables, ; 21 cm. ISBN: 8125910042 Subjects--Topical Terms: EconomicsManagerial economics. Dewey Class. No.: 338.5