TY  - BOOK
AU  - Penecilla, Gerand L. (et.al.)
TI  - Basic concepts in biology
SN  - 971-42-0334-1
U1  - Fil. 570 D370 C2003 
PY  - 2003///
CY  - PHilippines
PB  - Trinitas Publishing, Inc.
ER  -