| LDR | 00575namu 2200169 k 4500 | |
|---|---|---|
| 001 | 000000016300 | |
| 005 | 20010101000000 | |
| 008 | 950828s1987 us a 00000 eng d | |
| 040 | ▼a 247004 | |
| 049 | 0 | ▼l M0065245 ▼l M0096740 |
| 090 | ▼a 320 ▼b N273 ▼c NO.2304 | |
| 100 | 10 | ▼a Allen, Steven G. |
| 245 | 10 | ▼a Prodyctivity levels and productivity change under unionism / ▼d Steven G. Allen |
| 260 | 0 | ▼a Cambridge : ▼b National Bureau of Economic Research, ▼c 1987 |
| 300 | ▼a 29, 4 p. : ▼b ill. ; ▼c 26 cm | |
| 440 | 0 | ▼a NBER Working paper series ; ▼v no. 2304 |
| 710 | 20 | ▼a National Bureau of Economic Research |