TY  - BOOK
AU  - National center for educational research and development 
ED  - Ministry of national education youth and sports 
TI  - Informatics secondary education second year humanites and sciences sections
U1  - CRDP 004.0712 Inform. Gr.11 
PY  - 1999///
CY  - Sin El Fil
PB  - National center for educational research and development 
KW  - Informatics -- Study and teaching (Secondary Grade 11) -- Textbooks
ER  -