TY - BOOK AU - Hawkes,H.A. TI - The ecology of waste water treatment U1 - 628.34 PY - 1963/// CY - Oxford PB - Prgamon Press KW - Sewage disposal KW - Sewage KW - Purification KW - Biological treatment KW - Sewerage KW - oxidation N1 - Includes index; Bibliography: p. 185-194 ER -