Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora— 20 стр.
Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora— 22 стр.
Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora— 22 стр.