TY  - SER
AU  - Bautista, Delfin
TI  - Science
U1  -  Per. 370.71'051 P552 2004-2007 
PY  - 2006///
CY  - Manila
PB  - Publishers Association of the Philippines, Inc.
KW  - Education
KW  - Study and teaching
KW  - Classroom activity
KW  - Animal behavior
ER  -