TY - BOOK ED - Water Pollution Control Federation TI - Operation of Municipal Wastewater Treatment Plants SN - 0-943244-69-2 PY - 1991/// CY - Alexandria, Virginia PB - Water Pollution Control Federation KW - Environmental Engineering N1 - Includes Bibliographical References and Index; vol. 1 ( 1991, 408 p.); vol. 2 ( 1991, XIX, 409 - 874 p.); vol. 3 ( 1991, XIX, 875-1234 p.) ER -