1977 - Introduction to a Mathematical Treatment of Economics (Hardcover) → Paperback ISBN-13: 9780297773139 ISBN-10: 0297773135 ? 1977 - Introduction to a Mathematical Treatment of Economics (Paperback) → Paperback, Hardcover ISBN-13: 9780297773146 ISBN-10: 0297773143 ? Introduction to a Mathematical Treatment of Economics (Paperback) → Paperback, Hardcover ISBN-13: 9780297995463 ISBN-10: 0297995464 ? |