1981 - Copper and Zambia an Econometric Analysis [The Wharton econometric studies series] (Other) ISBN-13: 9780669046595 ISBN-10: 0669046590 ? |
1981 - Copper and Zambia an Econometric Analysis [The Wharton econometric studies series] (Other) ISBN-13: 9780669046595 ISBN-10: 0669046590 ? |