1979 - Introduction to Technical Mathematics a Calculator Approach (Paperback) ISBN-13: 9780471222408 ISBN-10: 0471222402 ? 1979 - Handheld Calculator Use and Applications (Paperback) ISBN-13: 9780471022763 ISBN-10: 0471022764 Genre: Science & Math ? 1977 - Arithmetic with Pushbutton Accuracy (Paperback) ISBN-13: 9780471223085 ISBN-10: 0471223085 Genres: Science & Math, Engineering & Transportation ? |