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The Chemistry of fruits and vegetables, Yakima River Valley, Washington, and the influence of the 1980 Mount St. Helens ash-fall episodes
CHEMISTRY fruits vegetables -- Erdwiss.FB -- The Chemistry of fruits and vegetables,Yakima -- River Valley,Washington,and the influence of -- the 1980 Mount St.Helens ash-fall episodes.By -- L.P.Gough[u.a.].Element concentrations in sam- -- ples of 8 types of produce are reported for -- collections taken before and after ash deposi- -- tion,and the importance of compositional diffe- -- rences is assessed.(With abstr.) - (Washington: -- United States Government Print.Office 1986.) -- III,13 S.m.Tab.u.1 Fig. 4° -- (U.S.Geological Survey Bulletin.Nr 1640.) -- 1986:420/Ge. -- Web.