C.H. · Charles H. · Charles Harrison · H. Harrison
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Free to Learn | Paperback | 978-0-13-331058-0 (0-13-331058-2) | 1972 | James H. Martin |
| Free to Learn | Hardcover | 978-0-13-331066-5 (0-13-331066-3) | 1972 | " |