F. Bell · Frederick Bell · H. B
title | ISBN-13 (ISBN-10) | year of publication |
---|---|---|
Teaching and learning mathematics | 978-0-697-06017-4 (0-697-06017-9) | 1978 |
Teaching elementary school mathematics: Methods and content for grades K-8 | 978-0-697-06018-1 (0-697-06018-7) | 1980 |