TY  - BOOK
AU  - National center for educational research and development 
ED  - Ministry of national education youth and sports 
TI  - Physics: Teacher's guide, third year secondary education  sociology and economies section
U1  - CRDP 373.7 Phys. Guide Gr.12SE 
PY  - 2000///
CY  - Sin El Fil
PB  - National center for educational research and development 
KW  - Physics -- Study and teaching (Secondary Grade 12) -- Sociology and Economies -- Teacher's guide
KW  - Physics -- Study and teaching (Secondary Grade 12) --Teacher's guide
ER  -