Philippines. Department of Environment and Natural Resources. Environment and Natural Resources. Environmental Management Bureau. Global warming, global warning: The ozone layer and chloroflourocarbons. DENR. Environment Bureau.
Chicago Style (17th ed.) CitationPhilippines. Department of Environment and Natural Resources. Environment and Natural Resources. Environmental Management Bureau. Global Warming, Global Warning: The Ozone Layer and Chloroflourocarbons. Quezon City: DENR. Environment Bureau.
MLA (9th ed.) CitationPhilippines. Department of Environment and Natural Resources. Environment and Natural Resources. Environmental Management Bureau. Global Warming, Global Warning: The Ozone Layer and Chloroflourocarbons. DENR. Environment Bureau.
Warning: These citations may not always be 100% accurate.