TY  - BOOK
AU  - Alexander, William M.; Galen Saylor, J.
TI  - Modern Secondary Education: Basic Principles and Practices
U1  - 373 
PY  - 1961///
CY  - New York, Estados Unidos de América
PB  - Holt, Rinehart and Winston, 
KW  - Educación Secundaria
ER  -