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| 005 | 20240210063918.0 | ||
| 008 | 991125s1977 mx 000 0 spa u | ||
| 035 | _aUPN01000032757 | ||
| 049 | _aCG | ||
| 050 | 4 |
_aLB1028 _bA4.5 |
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| 100 | 1 |
_aAlvarez Constantino, Higilio _928713 |
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| 245 | 1 | 0 |
_aInvestigación y experimentación educacional / _cHigilio Alvarez Constantino. |
| 260 |
_aMéxico : _b[s.n.], _c1977. |
||
| 300 | _a42 p. | ||
| 650 | 4 |
_aEducación _xInvestigación _94070 |
|
| 650 | 4 |
_aEducación _xMétodos experimentales _95868 |
|
| 905 | _aLibro | ||
| 999 |
_c32757 _d32757 |
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