| LDR | 00555namu 2200169 k 4500 | |
|---|---|---|
| 001 | 000000015717 | |
| 005 | 20010101000000 | |
| 008 | 950824s1987 us a 00000 eng d | |
| 040 | ▼a 247004 | |
| 049 | 0 | ▼l M0065325 ▼l M0096819 |
| 090 | ▼a 320 ▼b N273 ▼c NO.2411 | |
| 100 | 10 | ▼a Hurd, Michael D. |
| 245 | 14 | ▼a The Marginal value of social security / ▼d Michael D. Hurd |
| 260 | 0 | ▼a Cambridge : ▼b National Bureau of Economic Research, ▼c 1987 |
| 300 | ▼a 26, 11 p. : ▼b ill. ; ▼c 27 cm | |
| 440 | 0 | ▼a NBER Working paper series ; ▼v no. 2411 |
| 710 | 20 | ▼a National Bureau of Economic Research |