1975 - Laws of Duplicate Contract Bridge As Promulgated in the Western Hemisphere By the American Contract Bridge League Effective July 30 1975 (Paperback) → Hardcover ISBN-13: 9780517524398 ISBN-10: 0517524392 ? 1975 - Laws of Duplicate Contract Bridge As Promulgated in the Western Hemisphere By the American Contract Bridge League Effective July 30 1975 (Hardcover) → Paperback ISBN-13: 9780517524404 ISBN-10: 0517524406 ? |