TY  - BOOK
AU  - Barba, Robertta H.
AU  - Rubba, Peter A.
TI  - A comparison of preservice and in-service earth and space science teachers' general mental abilities, content knowledge, and problem-solving skills
KW  - CIENCIA DE LA TIERRA
KW  - EDUCACION CIENTIFICA
KW  - EDUCACION DEL MAESTRO EN CONSERVACION
KW  - EDUCACION SUPERIOR
KW  - FORMACION DE MAESTROS
N1  - Mayo 1993
ER  -