Philippines. Environmental Management Bureau. (1980). Directory of environmental legislations. Environmental Management Bureau.
芝加哥风格引文Philippines. Environmental Management Bureau. Directory of Environmental Legislations. [Quezon City]: Environmental Management Bureau, 1980.
MLA引文Philippines. Environmental Management Bureau. Directory of Environmental Legislations. Environmental Management Bureau, 1980.
警告：这些引文格式不一定是100％准确.