| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| World War I: 199 Most Asked Questions on World War I - What You Need to Know | 978-1-4888-56O6-8 (1-4888-56O6-O) | 2014 |
L -H · Leonard Hal · Leonard Hall · Leonard Hill · Leonard Hollaway · Leonard Hoyle · Leonhard Hell