| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Understanding Other Cultures. | Paperback | 978-0-13-936161-6 (0-13-936161-8) | 1963 |
| Understanding race relations | " | 978-0-13-936203-3 (0-13-936203-7) | 1973 |
| Understanding race relations | Hardcover | 978-0-13-936211-8 (0-13-936211-8) | 1973 |