BookSurge Publishing · CreateSpace Independent Publishing Platform
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Concise Visitor's Guide to Yellowstone | 978-1-4536-1882-0 (1-4536-1882-1) | 2010 |
| The Concise Visitor's Guide to Yosemite | 978-1-4392-3429-7 (1-4392-3429-9) | 2009 |