| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The How to Easily Handle Difficult People Handbook: Everything Problem-People Don't Want You to Know | 978-1-4O22-O694-8 (1-4O22-O694-1) | 2006 |
Oecumenius · OhkamiMineko · Okninski · Oksanen · Osaimond · Osmand · Osmont · Ouaknin · Ousmane · Ouzounian · Ozanam · Ozment