H.D. · H. P. · Heidi Dougherty
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Ultimate Montana Atlas and Travel Encyclopedia, 2nd Ed. | 978-1-888550-11-5 (1-888550-11-2) | 2002 | Michael Dougherty |
| The Ultimate Montana Atlas and Travel Encyclopedia, Third Edition | 978-1-888550-14-6 (1-888550-14-7) | 2005 | " |
| The Ultimate Wyoming Atlas and Travel Encyclopedia | 978-1-888550-12-2 (1-888550-12-0) | 2003 | " |