TY - BOOK AU - Randall, Clifford W. AU - Barnard, James L., AU - Stensel, H. David TI - Design and retrofit of wastewater treatment plants for biological nutrient removal T2 - Water quality management library SN - 0877629226 AV - TD420 D47 PY - 1992/// CY - Lancaster PB - Technomic KW - Plantas depuradoras de agua ER -