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|Material Type:||Government publication, National government publication|
|All Authors / Contributors:||United States. Environmental Protection Agency. Water Supply Division.; Centers for Disease Control (U.S.)|
|Notes:||"Reprinted by U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control"--Cover.
"First printed 1973, revised 1974, reprinted 1975, revised 1981."
|Description:||viii, 155 pages : illustrations ; 23 cm|