TY  - BOOK
TI  - A systems approach to teaching and learning procedures: a guide for educators in developing contries
AV  - LC 2607 S98
PY  - 1975///
CY  - Paris
PB  - The UNESCO
KW  - Educación -
KW  - Regiones en desarrollo
KW  - Educación
KW  - Sistema de análisis
ER  -