| 000 | 00893nam a2200253Ia 4500 | ||
|---|---|---|---|
| 001 | 131864 | ||
| 003 | BIBL | ||
| 005 | 20160527192049.0 | ||
| 008 | 840910s1939 pr a b 000 0 eng d | ||
| 035 | _a(OCoLC)11135199 | ||
| 040 |
_aOUN _cOUN |
||
| 049 | _aPUXA | ||
| 090 |
_aLB3063 _b.P6 1939x |
||
| 100 | 1 |
_aPorrata, Oscar Emilio _2Local _9152674 |
|
| 245 | 1 | 0 |
_aRetardation in the elementary urban schools of Puerto Rico _cby Oscar Emilio Porrata. |
| 260 |
_aRio Piedras, P.R. _bThe University _c1939. |
||
| 300 |
_a63 p. _bill. _c24 cm. |
||
| 490 | 0 |
_aUniversity of Puerto Rico bulletin _vser. X, no.1 _2Local _9183292 |
|
| 500 | _aThesis (M.A.)--University of Chicago, 1934. | ||
| 504 | _aBibliography: p. 62-63. | ||
| 650 | 0 |
_aGrading and marking Students _2Local _9104940 |
|
| 650 | 0 |
_aPublic schools _zPuerto Rico. _2Local _9154937 |
|
| 650 | 0 |
_aHandicapped children _2Local _9107927 |
|
| 999 |
_c111356 _d111356 |
||