Operations of the Numbers of Arithmetic [Algebra a Modern Introduction Booklet 3] (Paperback) ISBN-13: 9780201039795 ISBN-10: 0201039796 ? Measures Ratio and Averages [Algebra a Modern Introduction Booklet 5] (Paperback) ISBN-13: 9780201039818 ISBN-10: 0201039818 ? Numbers of Ordinary Arithmetic and Algebra [Algebra, a Modern Introduction] (Paperback) ISBN-13: 9780201039825 ISBN-10: 0201039826 ? |