| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Laugh Connection: How to Use Humor in Dealing With People | 978-0-13-525783-8 (0-13-525783-2) | 1987 | Esther Blumenfeld |
| The Smile Connection: How to Use Humor in Dealing with People | 978-0-13-525775-3 (0-13-525775-1) | 1985 | " |
L a · Len Alberstadt · Len Albright · Lena Ahlborn · Leon Alberti · Lina Alberts · Lynne Alpern · Lynne Alvarez