| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Yuraq Janka: Guide to the Peruvian Andes | 978-0-920330-04-3 (0-920330-04-5) | 1977 | |
| Yuraq Janka: Guide to the Peruvian Andes--Cordilleras Blanca and Rosko | 978-0-930410-05-6 (0-930410-05-X) | 1977 | Ricker |
J. F. · J R · John F. · John R. · John Ricker