Coltan Mining in the Democratic Republic of Congo How Tantalumusing Industries Can Commit to the Reconstruction of the Drc (Paperback) ISBN-13: 9781903703106 ISBN-10: 1903703107 Genres: Business & Money, Engineering & Transportation ? The Generalized Fechnerthurstone Direct Utility Function and Some of Its Uses [Lecture Notes in Economics and Mathematical Systems, No 316] (Paperback) ISBN-13: 9780387968537 ISBN-10: 0387968539 Genre: Business & Money ? |