G. P. ยท G Petrequin
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Individualizing Learning Through Modular-Flexible Programming | Hardcover | 978-0-07-049665-1 (0-07-049665-X) | 1968 |
| Individualizing Learning Through Modular-Flexible Programming | Paperback | 978-0-07-049666-8 (0-07-049666-8) | 1968 |