APA

Francy D. S., National Exposure Research Laboratory U.S & Geological Survey (U.S.). (2004). Environmental factors and chemical and microbiological water-quality constituents related to the presence of enteric viruses in ground water from small public water supplies in southeastern Michigan. Reston, Va: U.S. Geological Survey.

Chicago

Francy Donna S, National Exposure Research Laboratory U.S and Geological Survey (U.S.). 2004. Environmental factors and chemical and microbiological water-quality constituents related to the presence of enteric viruses in ground water from small public water supplies in southeastern Michigan. Reston, Va: U.S. Geological Survey.

Harvard

Francy D. S., National Exposure Research Laboratory U.S and Geological Survey (U.S.). (2004). Environmental factors and chemical and microbiological water-quality constituents related to the presence of enteric viruses in ground water from small public water supplies in southeastern Michigan. Reston, Va: U.S. Geological Survey.

MLA

Francy Donna S, National Exposure Research Laboratory U.S and Geological Survey (U.S.). Environmental factors and chemical and microbiological water-quality constituents related to the presence of enteric viruses in ground water from small public water supplies in southeastern Michigan. Reston, Va: U.S. Geological Survey. 2004.