00459nam a2200157Ia 4500 0000006264 20251012174450.0 710414s1971 nyua b 001 0 eng HD82 .H25 339.5/01/84 Models of economic growth. New York, Harper & Row [1971] x, 246 p illus 25 cm. Includes bibliographical references. Economic development Mathematical models. 4073 4073