Rural water quality control measures: an experience in the Malumfashi District of Northern Nigeria.

Autor: Essien ES, Osuhor PC
Jazyk: angličtina
Zdroj: Public health [Public Health] 1979 Nov; Vol. 93 (6), pp. 363-70.
DOI: 10.1016/s0033-3506(79)80051-7
Databáze: MEDLINE
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