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Spectrographic data for the ash of ground birch (Betula rotundifolia Sarg.) leaves and black spruce (Picea mariana B.S.P.) needles collected from the Tanacross 1:250,000-scale quadrangle, Alaska
Spectrographic data for the ash of ground birch (Betula rotundifolia Sarg.) leaves and black spruce (Picea mariana B.S.P.) needles collected from the Tanacross 1:250,000-scale quadrangle, Alaska