TY  - BOOK
AU  - Henry, Nelson B.
TI  - The forty - first yearbook of the national society for the study of education : : part ll. The psychology of learning / 
U1  - 155.41315 21
PY  - 1942///
CY  - Chicago, Estados Unidos de América
PB  - The University of Chicago Press, 
KW  - Psicología del Aprendizaje
KW  - ddcri
KW  - Psicología infantil
KW  - Unesco
ER  -