Production and productivity in the service industries
| Awduron Eraill: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
National Bureau of Economic Research
[c1969].
|
| Cyfres: | Studies in income and wealth
v. 34 |
| Pynciau: |