TY - BOOK AU - Benefield,Larry D. AU - Randall,Clifford W. TI - Biological process design for wastewater treatment SN - 013076406X PY - 1980/// CY - Englewood Cliffs, N.J. PB - Prentice-Hall KW - Sewage KW - Purification KW - Biological treatment KW - Sewage disposal plants KW - Design and construction ER -