APA Style
Association, A, W, W., W., P, F. (1990).
Water Quality and Treatment : handbook of Community water Supllies .
New York:
MC GRAW HILL.
MLA Style
Association, American, Water, Works., W., Pontius., Frederic.
"Water Quality and Treatment : handbook of Community water Supllies".
New York:
MC GRAW HILL,
1990.
Buku.