1999 - Spectrum Math Grade 4 [Trade Math] (Paperback) ISBN-13: 9781577684046 ISBN-10: 1577684044 Genres: Children's Books, Nonfiction ? 1997 - Spectrum Mathematics Green Book Level 6 [Spectrum mathematics series] (Paperback) ISBN-13: 9780844514260 ISBN-10: 0844514268 Genre: Children's Books ? 1980 - Spectrum Mathematics Purple Book [Spectrum mathematics series] (Other) ISBN-13: 9780844513980 ISBN-10: 0844513989 ? Spectrum Mathematics Red Book Level 3 [SPANISH LANGUAGE EDITION] (Paperback) ISBN-13: 9780026875592 ISBN-10: 0026875594 Genre: Children's Books ? Spectrum Mathematics Blue Book [Second Edition] (Paperback) ISBN-13: 9780844513072 ISBN-10: 0844513075 ? |