United States. Council on Environmental Quality. (1970). Environmental quality. 1st-. U.S. Govt. Print. Off.
芝加哥风格引文United States. Council on Environmental Quality. Environmental Quality. 1st-. [Washington: U.S. Govt. Print. Off, 1970.
MLA引文United States. Council on Environmental Quality. Environmental Quality. 1st-. U.S. Govt. Print. Off, 1970.
警告：这些引文格式不一定是100％准确.