TY  - BOOK
AU  - National center for educational research and development 
ED  - Ministry of national education youth and sports 
TI  - Physics: Secondary education third year literature and humanites sociology and economies section
U1  - 530.071 (LH-SE) Physics 
PY  - 2010///
CY  - Sin El Fil
PB  - National center for educational research and development 
KW  - Physics -- Study and teaching (Secondary Grade 12) -- Literature and Humanites -- Textbooks
KW  - Physics -- Study and teaching (Secondary Grade 12) -- Sociology and Economies -- Textbooks
ER  -