Horan, N. J. (1993). Biological wastewater treatment systems. Theory and operation ([1st ed.] 3rd reprint.). John Wiley & Sons.
Citace podle Chicago (17th ed.)Horan, N. J. Biological Wastewater Treatment Systems. Theory and Operation. [1st ed.] 3rd reprint. Chichester: John Wiley & Sons, 1993.
Citace podle MLA (9th ed.)Horan, N. J. Biological Wastewater Treatment Systems. Theory and Operation. [1st ed.] 3rd reprint. John Wiley & Sons, 1993.
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