Murphy, Roy E. Adaptive processes in economic systems/ [by] Roy E. Murphy, Jr. - New York: Academic Press, 1965. - xvi, 209 p.: illus., 24 cm. - Mathematics in science and engineering, v. 20 . Includes bibliographies. LCCN: 65025003 Nat. Bib. No.: GB66-3600 Subjects--Topical Terms: Economics---Mathematical models. Dewey Class. No.: 330.015 / M978a