Nicholson, Walter. Microeconomic theory : basic principles and extensions / Walter Nicholson. - 6th ed. - Fort Worth : Dryden Press, c1995. - xxiii, 901 p. : ill. ; - The Dryden Press series in economics . ISBN: 0030075548 Subjects--Topical Terms: Microeconomics. LC Class. No.: HB172 / .N49 1995