Walker, R. (1978). Water supply, treatment, and distribution. Prentice-Hall.
Chicago-viite (17. p.)Walker, Rodger. Water Supply, Treatment, and Distribution. Englewood cliffs, N. J: Prentice-Hall, 1978.
MLA-viite (9. p.)Walker, Rodger. Water Supply, Treatment, and Distribution. Prentice-Hall, 1978.
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