Cengage Learning · HarperCollins
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| How to Design & Deliver a Speech, Third Edition | 978-0-06-042089-5 (0-06-042089-8) | 1985 |
| Our World Readers: The Tug-of-War: British English | 978-1-285-19139-3 (1-285-19139-0) | 2013 |