225450 Viessman, W. (1977). Introduction to hydrology. New York : Harper and Row Pub.
Chicago-čujuhus (17. p.)225450 Viessman, Warren. Introduction to Hydrology. New York : Harper and Row Pub, 1977.
MLA-čujuhus (9. p.)225450 Viessman, Warren. Introduction to Hydrology. New York : Harper and Row Pub, 1977.
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