TY  - BOOK
AU  - ABS-CBN Foundation, Inc.
TI  - Sineskwela: Expansion and Contraction of Gas: Hot Air Ballon/Sources of Energy: Natural Gas/Windpower: Windmills/Solar Energy: Libreng Kuryente mula sa Araw
U1  - DVD 500 
PB  - ABS-CBN Foundation, Inc
KW  - Natural science
KW  - Science
ER  -