Paper presented at the ASTM-EPA symposium on the Recovery of Indicator Organisms Employing Membrane Filters, Florida, 1975. Walker, J.D., Conrad, B.F., Seesman, P.A. and Colwell, R.R., 1977. Comparison of membrane filter counts and plate counts of heterotrophic and oil agar used to estimate populations of yeast, fungi and bacteria. Proc.
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