TY  - BOOK
AU  - Catchillar, Gerry C
TI  - Biology: a simplified approach 
SN  - 9710866117 Pbk, Bp.
PY  - 2006///
CY  - Mandaluyong City : 
PB  - National Book Store
KW  - Biology
N1  - Includes bibliographical references
ER  -