Method 1603 [electronic resource] : Escherichia coli (E. coli) in water by membrane filtration using modified membrane-thermotolerant Escherichia coli agar (modified 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/1603escherichiacoli.pdf; current access available via PURL.
