TY  - GEN
AU  - Getzels, J. W.
AU  - Thelen, H. A.
TI  - Conceptual framework for the study of the classroom group as a social system
KW  - Psicologia Educacional
KW  - 3500 - Psicologia Educacional
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm
ER  -