| 000 | 00616nam a2200241 a 4500 | ||
|---|---|---|---|
| 005 | 20210219153531.0 | ||
| 008 | 991125n 000 0 u | ||
| 035 | _aUPN01000105156 | ||
| 100 | _aBettis, Clifford | ||
| 222 | _aPHYSICS TEACHER | ||
| 245 | _aWhat teachers should know about radon | ||
| 300 | _a338-343 | ||
| 362 | _a29, No. 6, 1991 | ||
| 505 | _aFebrero 1993 | ||
| 653 | 0 | _aCANCER | |
| 653 | 0 | _aEDUCACION SANITARIA | |
| 653 | 0 | _aEFECTOS RADIACTIVOS | |
| 653 | 0 | _aFISICA | |
| 653 | 0 | _aINSTRUCCION CIENTIFICA | |
| 700 | _aThrockmorton, Carl | ||
| 904 |
_aAC _b042967 |
||
| 905 | _aArticulo | ||
| 999 |
_c79287 _d79287 |
||