(2000). Las Piñas City, nanalo ng U.N. environment award. Kabayan.
Chicago Style (17th ed.) Citation"Las Piñas City, Nanalo Ng U.N. Environment Award." Kabayan 2000.
MLA (9th ed.) Citation"Las Piñas City, Nanalo Ng U.N. Environment Award." Kabayan, 2000.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.