Human resources
| Erakunde egilea: | |
|---|---|
| Beste egile batzuk: | |
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
New York
National Bureau of Economic Research
1972.
|
| Saila: | Fiftieth Anniversary Colloquium series
General series National Bureau of Economic Research 96. Economic research: retrospect and prospect, v. 6 |
| Gaiak: |