| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Purchasing | 978-0-13-742206-7 | 1987 | Paul V. Farrell |
| Purchasing: Principles & Applications | 978-0-13-742163-3 | 1981 | " |
| Purchasing: Principles and Applications | 978-0-13-742081-0 | 1991 | |
| Purchasing: Principles and applications | 978-0-13-742180-0 | 1986 | |
| Purchasing Principles and Applications | 978-0-13-742148-0 | 1965 | Paul V. Farrell |