Generalized Clifford Parallelism [Cambridge Tracts in Mathematics] (Hardcover) → Paperback ISBN-13: 9780521080422 ISBN-10: 0521080428 ? Generalized Clifford Parallelism [Cambridge Tracts in Mathematics] (Paperback) → Hardcover ISBN-13: 9780521091848 ISBN-10: 0521091845 ? |