Global warming, global warning the ozone layer and chloroflourocarbons .

Sonraí bibleagrafaíochta
Údar corparáideach:	Philippines. Department of Environment and Natural Resources. Environment and Natural Resources. Environmental Management Bureau
Formáid:	Visual Material
Teanga:	English
Foilsithe / Cruthaithe:	Quezon City DENR. Environment Bureau [19-n].