Investigations in Algebra an Approach to Using Logo (Hardcover) → Paperback ISBN-13: 9780262031448 ISBN-10: 0262031442 Genres: Computers & Technology, Science & Math ? Investigations in Algebra an Approach to Using Logo (Paperback) → Hardcover ISBN-13: 9780262530712 ISBN-10: 0262530716 Genres: Computers & Technology, Science & Math, Engineering & Transportation ? |