TY  - BOOK
AU  - Ungson, Oliva B.
TI  - Science fundamentals for high school III : : chemistry 
U1  - Fil. 540 Un57 2006 rev. ed.
PY  - 2006///
CY  - Bulacan : 
PB  - Trinitas Pub., 
KW  - Chemistry
N1  - 1.Includes bibliographical references and index
ER  -