Norman, W. S. (1961). Absorption, distillation and cooling towers. John Wiley.
Lua i Stíl Chicago (17ú heag.)Norman, W. S. Absorption, Distillation and Cooling Towers. New York, USA: John Wiley, 1961.
Lua MLA (9ú heag.)Norman, W. S. Absorption, Distillation and Cooling Towers. John Wiley, 1961.
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