Great Britain. Standing Committee of Analysts. (1983). Biochemical oxygen demand, 1981: Methods for the examination of waters and associated materials. H.M.S.O..
Lua i Stíl Chicago (17ú heag.)Great Britain. Standing Committee of Analysts. Biochemical Oxygen Demand, 1981: Methods for the Examination of Waters and Associated Materials. London: H.M.S.O., 1983.
Lua MLA (8ú heag.)Great Britain. Standing Committee of Analysts. Biochemical Oxygen Demand, 1981: Methods for the Examination of Waters and Associated Materials. H.M.S.O., 1983.
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