Babbitt, H. E. (1953). Sewerage and sewage treatment. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Babbitt, Harold E. Sewerage and Sewage Treatment. New York: John Wiley & Sons, 1953.
Lua MLA (9ú heag.)Babbitt, Harold E. Sewerage and Sewage Treatment. John Wiley & Sons, 1953.
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