New York State Departament of Health. Manual of Instruction for Water Treatment plant Operators. Health Education Service.
Style de citation Chicago (17e éd.)New York State Departament of Health. Manual of Instruction for Water Treatment Plant Operators. New York: Health Education Service.
Style de citation MLA (9e éd.)New York State Departament of Health. Manual of Instruction for Water Treatment Plant Operators. Health Education Service.
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