2005 - Patents Citations and Innovations a Window on the Knowledge Economy (Paperback) → Hardcover ISBN-13: 9780262600651 ISBN-10: 026260065X Genres: Business & Money, Reference, Science & Math, Law, Engineering & Transportation ? 2002 - Patents Citations and Innovations a Window on the Knowledge Economy (Hardcover) → Paperback ISBN-13: 9780262100953 ISBN-10: 0262100959 Genre: Science & Math ? 1990 - Economic Analysis of Product Innovation the Case of Ct Scanners [Harvard Economic Studies] (Hardcover) ISBN-13: 9780674225404 ISBN-10: 0674225406 Genre: Business & Money ? |