Truett, Lila J. (Lila Jean). Managerial economics : analysis, problems, cases / Lila J. Truett, Dale B. Truett. - 4th ed. - Cincinnati : South-Western Pub. Co., 1992. - 634 p. : ill. ; 24 cm. ISBN: 0538812850 RM39.02 Subjects--Topical Terms: Managerial economics.