B. Davis · Nancy D. · Nancy Davis
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Vocabulary Improvement | 978-0-07-015513-8 (0-07-015513-5) | 1973 |
| Vocabulary Improvement | 978-0-07-015514-5 (0-07-015514-3) | 1973 |
| Vocabulary Improvement: A Program for Self-Instruction | 978-0-07-015543-5 (0-07-015543-7) | 1979 |