Washington20050729d1955 y0pory50 bacreatorESTADOS UNIDOSAmerican Chemical Society. Committee on Analytical Reagentstextmonographic"Prepared by the 1955 Committee on Analytical Reagents, Edward Wichers, chairman. Officially approved by the Council of the American Chemical Society, April 3, 1955. Edited and produced by staff members of analytical chemistry."
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