Standard methods for the examination of dairy products, microbiological, bioassay and chemical / microbiological and bioassay methods formulated by Committees of the American Public Health Association and approved for the publication by the American Public Health Association, March 20, 1941 ; chemical methods comp. by the Committe on editing Methods of Analisis of the Association of Official Agricultural Chemists and approved for publicatioin by that Association at its Annual Meeting in Washington, November 7, 1940.

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