TY  - BOOK
AU  - National center for educational research and development 
ED  - Ministry of national education youth and sports 
TI  - Life science energy: Sciences section, second year
U1  - CRDP 570.712 Life Sci. Gr.11s 
PY  - 2014///
CY  - Sin El Fil
PB  - National center for educational research and development 
KW  - Life science -- Study and teaching (Secondary Grade 11) -- Textbooks
KW  - Sciences section -- Life science -- Study and teaching (Secondary Grade 11) -- Textbooks
ER  -