Sewerage and Sewage Treatment

by Harold E. Babbitt

[195]. Reference 20.

[196]. Reference 17.

[197]. Reference 19.

[198]. Reference 21.

[199]. Reference 24.

[200]. Inorganic Chemistry, by Alexander Smith.

[201]. American Public Health Association definition.

[202]. Sewage Sludge by Allen.

[203]. Sewage Disposal by Kinnicutt, Winslow and Pratt.

[204]. Sewage Disposal by Fuller.