Conceptual Mathematics a First Introduction to Categories (Hardcover) → Paperback, Hardcover ISBN-13: 9780521472494 ISBN-10: 0521472490 Genres: Science & Math, Engineering & Transportation ? Conceptual Mathematics a First Introduction to Categories (Paperback) → Paperback, Hardcover ISBN-13: 9780521478175 ISBN-10: 0521478170 Genres: Science & Math, Engineering & Transportation ? |