TY  - BOOK
AU  - Maier,Henry William
TI  - Tres teorias sobre el desarrollo del niño: Erikson, Piaget y Sears
PY  - 1971///
CY  - Buenos Aires
PB  - Amorrortu Editores
N1  - Translation of : Three theories of child development : the contributions of Erik H. Erikson, Jean Piaget and Robert R. Sears and their applications; Includes bibliographies
ER  -