R. A. · R. Adams · Ramon F. Adams
Hippocrene Books · University of Oklahoma Press
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| A Fitting Death for Billy the Kid | 978-0-8061-1764-5 (0-8061-1764-8) | 1982 |
| Western Words: A Dictionary of the Old West | 978-0-7818-0590-2 (0-7818-0590-2) | 1997 |