TY  - BOOK
AU  - Balsicas, Nilda W.
AU  - Nilda W. Balsicas
TI  - A worktext in natural science : biological science
SN  - 9716856520
U1  - Fil. 574.20 B196 2005 Revised edition
PY  - 2005///
CY  - Q.C. : 
PB  - Lorimar Publishing, 
ER  -