Institution of Water Engineers & Skeat, W. O. (1954). Manual of British water supply practice (2nd ed.). W. Heffer.
Lua i Stíl Chicago (17ú heag.)Institution of Water Engineers agus William Oswald Skeat. Manual of British Water Supply Practice. 2nd ed. Cambridge,Eng: W. Heffer, 1954.
Lua MLA (9ú heag.)Institution of Water Engineers agus William Oswald Skeat. Manual of British Water Supply Practice. 2nd ed. W. Heffer, 1954.
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