U. S. Environmental Protection Agency. Office of Research and Development. (1979). Process design manual for sludge treatment and disposal. Ohio.
芝加哥风格引文U. S. Environmental Protection Agency. Office of Research and Development. Process Design Manual for Sludge Treatment and Disposal. Cincinnati: Ohio, 1979.
MLA引文U. S. Environmental Protection Agency. Office of Research and Development. Process Design Manual for Sludge Treatment and Disposal. Ohio, 1979.
警告：这些引文格式不一定是100％准确.