U.S. Environmental Protection Agency. (1996). Land application of biosolids: Process design manual. Technomic.
Cita Chicago (17th ed.)U.S. Environmental Protection Agency. Land Application of Biosolids: Process Design Manual. Lancaster: Technomic, 1996.
Cita MLA (9th ed.)U.S. Environmental Protection Agency. Land Application of Biosolids: Process Design Manual. Technomic, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.