A. S. ยท A. Schafer
| title | ISBN-13 | year of publica- tion |
|---|---|---|
| Canoeing western waterways, the coastal States | 978-0-06-013798-4 | 1978 |
| Canoeing western waterways, the coastal States | 978-0-06-013806-6 | 1978 |
| Canoeing Western waterways, the Mountain States | 978-0-06-013797-7 | 1978 |
| Canoeing Western waterways, the Mountain States | 978-0-06-013799-1 | 1978 |