1999 - The Theory of Oligopoly with Multiproduct Firms (Hardcover) ISBN-13: 9783540657798 ISBN-10: 3540657797 ? 1990 - The Theory of Oligopoly with Multiproduct Firms [Lecture Notes in Economics and Mathematical Systems] (Paperback) → Paperback ISBN-13: 9783540525677 ISBN-10: 354052567X ? The Theory of Oligopoly with Multiproduct Firms [Lecture Notes in Economics and Mathematical Systems] (Paperback) → Paperback ISBN-13: 9780387525679 ISBN-10: 038752567X ? |