Productive thinking.
| Author/creator | Wertheimer, Max |
| Format | Book |
| Edition | Enl. ed., edited by Michael Wertheimer. |
| Publication Info | New York : Harper, [1959] |
| Description | 302 pages : illustrations ; 22 cm |
| Subjects |
| Bibliography note | Includes bibliography. |
| LCCN | 59015141 |