TY  - BOOK
AU  - Montecastro-Realuyo,Zenaida
TI  - Basic concepts of biological science
SN  - 971150-082-5
PY  - 1990///
CY  - Quezon City
PB  - KATHA Pub. Co
KW  - Biology
KW  - Study and teaching
N1  - Includes bibliography
ER  -