Truett, Lila J. Managerial economics : analysis, problems, cases / Lila J. Truett, Dale B. Truett. - 8th ed. - Hoboken, NJ. : J. Wiley, 2004. - xxvi, 742 p. ISBN: 0470009934, 8126512539 Subjects--Topical Terms: Managerial economics.