National center for educational research and development  <br/><br/>
Chimestry, pedagogical guide: Second education, second year sciences section   

 - Sin El Fil  National center for educational research and development   1999 
 -  184 p.  27 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chimestry--Study and teaching (Secondary Grade 11) -- Pedagogical guide.<br/>Chimestry--Study and teaching (Secondary Grade 11) -- Pedagogical guide--Sciences section.
<br/><br/><label>Dewey Class. No.: </label>CRDP 373.7 Chim. Guide Gr.11s