TY  - BOOK
AU  - Ditan, Carolina Desamero
TI  - Introduction to biological science
SN  - 971-085-673-1
U1  - Fil. 570 D615 1994 
PY  - 1994///
CY  - Mandaluyong City
PB  - National Book Store
KW  - Biological Science
N1  - Includes bibliography
ER  -