| 000 | 00682nam a2200193 4500 | ||
|---|---|---|---|
| 001 | 15704 | ||
| 090 | _a15704 | ||
| 100 | _a20040322 1981 y0pory5003 ba | ||
| 200 | 1 |
_aResearch methods in education and the social sciences. block 3a _eresearch design _fOpen University |
|
| 210 |
_aLondon _cOpen Univ Press _d1981 |
||
| 215 | _a111 p. | ||
| 464 | 1 |
_tDesign of surveys _0183810 |
|
| 464 | 1 |
_tExperimental design _0185684 |
|
| 464 | 1 |
_tCausation and control _0187376 |
|
| 606 | 1 | _aMétodos de Investigação | |
| 686 | _a2260 - Métodos de Investigação e Designs Experimentais | ||
| 710 | 0 | 2 | _aOpen University |
| 856 | 4 | _uhttps://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/m.htm | |