Feldmann, C. R. (1977). Self-monitoring procedures: Basic parameters for municipal effluents :student reference manual. U.S. Environmental Protection Agency, Office of Water Program Operations.
芝加哥风格引文Feldmann, Charles R. Self-monitoring Procedures: Basic Parameters for Municipal Effluents :student Reference Manual. [Washington]: U.S. Environmental Protection Agency, Office of Water Program Operations, 1977.
MLA引文Feldmann, Charles R. Self-monitoring Procedures: Basic Parameters for Municipal Effluents :student Reference Manual. U.S. Environmental Protection Agency, Office of Water Program Operations, 1977.
警告：这些引文格式不一定是100％准确.