@misc{indiciaec4725585378d, title = {The chemistry of fruits and vegetables, Yakima River Valley, Washington, and the influence of the 1980 Mount St. Helens ash fall episodes}, author = {L. P. Gough and H.T. Shacklette and J. L. Peard and C. S. Papp}, year = {1986}, doi = {10.3133/b1640}, url = {https://pubs.usgs.gov/publication/b1640}, note = {Source identifier: b1640} }