共 20 条
[12]
HALE FE, 1954, USE COPPER SULPHATE
[14]
MALONEY T. E., 1956, WATER AND SEWAGE WORKS, V103, P509
[17]
MOORE GT, 1904, 64 B US DEP AGR BUR, P15
[18]
MORGAN GB, 1958, SEWAGE IND WASTES, V30, P283
[19]
MOYLE JB, 1949, LIMNOLOGICAL ASPECTS, P79
[20]
PALMER C. MERVIN, 1955, OHIO JOUR SCI, V55, P1