| 000 | 00445nam a2200181 a 4500 | ||
|---|---|---|---|
| 005 | 20231020063931.0 | ||
| 008 | 991125s1980 mx 000 0 spa u | ||
| 020 | _a9688230146 | ||
| 035 | _aUPN01000018650 | ||
| 049 | _aCG | ||
| 050 | 4 |
_aQC16 E5 _bE3.5 1980 |
|
| 245 | 0 | 0 | _aEinstein. |
| 250 | _a2a ed. | ||
| 260 |
_aMéxico : _bCONACYT, _c1980. |
||
| 300 |
_a143 p. : _bil. |
||
| 600 | 1 | 2 |
_aEinstein, Albert, _d1879-1955 _912872 |
| 905 | _aLibro | ||
| 999 |
_c18650 _d18650 |
||