000 00569naa a2200145 4500
001 185939
090 _a185939
100 _a20040322 y0pory5003 ba
200 1 _aTwo valiable analysis
_fCathie Marsh
463 1 _eOpen Univ Press, 1981
_vLondon
_vp. 41-94
_tResearch methods in education and the social sciences. block 6 : making sense of data
_015701
606 1 _aMétodos de Investigação
686 _a2260 - Métodos de Investigação e Designs Experimentais
700 1 _aMarsh
_bCathie
856 4 _uhttps://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/m.htm