TY  - BOOK
AU  - Johnson, David
AU  - Johnson, Roger
TI  - Learning together and alone
PY  - 1999///
CY  - Boston
PB  - Allyn And Bacon
KW  - Psicologia Educacional
KW  - 3500 - Psicologia Educacional
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm
ER  -