The psychology of the inventor; a study of the patentee
Wedi'i Gadw mewn:
| OCLC: | 6427084 |
|---|---|
| Prif Awdur: | |
| Iaith: | English |
| Cyhoeddwyd: |
Washington,
Inventors Publishing,
1931.
|
| Rhifyn: | New and rev. ed. |
| Pynciau: | |
| Fformat: | Monograph Note that CRL will digitize material from the collection when copyright allows. |