D.C. · E C. · E. D. · Inc. Educational Development Center
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Impact Mathematics Algebra and More Teacher's Guide Volume B Course 1 | 978-0-07-860911-4 (0-07-860911-9) | 2004 |
| Teacher's Guide for Butterflies | 978-0-07-017682-9 (0-07-017682-5) | 1970 |