| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Backpacking and Trekking in Peru and Bolivia | 978-1-56440-613-2 (1-56440-613-X) | 1995 | Hilary Bradt · Jonathan Derksen |
Peter Sifneos · Peter Skupnik · Peter Spangenberg · Peter Spannagl · Peter Spencer · Peter Spengler · Peter Sponagel · Peter Svensson