2006 - Doing Mathematics an Introduction to Proofs and Problemsolving (Paperback) → Paperback ISBN-13: 9780495108160 ISBN-10: 0495108162 Genres: Reference, Science & Math ? 1993 - Doing Mathematics an Introduction to Proofs and Problemsolving (Paperback) → Paperback ISBN-13: 9780030928000 ISBN-10: 0030928001 Genres: Science & Math, Engineering & Transportation ? 1989 - Introduction to Mathematical Structures (Hardcover) ISBN-13: 9780155434684 ISBN-10: 0155434683 Genres: Science & Math, Engineering & Transportation ? |