TY  - BOOK
AU  - Ministry of national education youth and sports 
ED  - National center for educational research and development
TI  - Life science: Pedagogical guide, secondary year sciences section 
U1  - CRDP 373.7 Life Sci. Guide Gr.11s 
PY  - 1999///
CY  - Sin El Fil
PB  - Ministry of national education youth and sports 
KW  - Life science -- Study and teaching (Secondary Grade 11) -- Pedagogical guide
KW  - Science section -- Life science -- Study and teaching (Secondary Grade 11) -- Pedagogical guide
ER  -