00447pamaa2200157 4500 0000031760 20070731090000.0 0393973158 338.5 MAN HD30.22 MAN 1999 Mansfield Managerial economics : theory,applications and cases Edwin Mansfield. 4th ed. New York: W.W. Norton & Co., 1999. xxiv, 671p.: ill.; 24cm. Managerial economics