| 000 | 00426nam a2200133 a 4500 | ||
|---|---|---|---|
| 008 | 170703s1970#### ||||f#|||||00| 0#uuu#d | ||
| 003 | AR-SmCIES | ||
| 091 | _a21793 | ||
| 245 | 1 | 0 | _aProtection against ionizing radiation from external sources. |
| 260 |
_a[s.l.] : _b[s.n.], _c1970. |
||
| 650 | 4 | _aRADIACIONES -PROTECCION | |
| 999 |
_c22154 _d22154 |
||