Method 1103.1 [electronic resource] : Escherichia coli (E. coli) in water by membrane filtration using membrane-thermotolerant Escherichia coli agar (mTEC).
Imprint
[Washington, D.C.] : United States Environmental Protection Agency, Office of Water, [2002]
Mode of access: Internet from the EPA web site. Address as of 4/2/2004: http://epa.gov/waterscience/methods/biological/1103point1escherichiacoli.pdf; current access available via PURL.