S. P. · Steve Peifer · Steve Pepper
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Collecting Case Knives: Identification and Price Guide | 978-1-4402-0238-4 (1-4402-0238-9) | 2009 |
| Collecting Case Knives: Identification and Price Guide for Pocket Knives | 978-1-4402-4499-5 (1-4402-4499-5) | 2015 |