Perkins, R. W.

Physicochemical or geochemical, Toxicological

• Fruchter, J. S., Robertson, D. E., Evans, J. C., Olsen, K. B., Lepel, E. A., Laul, J. C., Abel, K. H., Sanders, R. W., Jackson, P. O., Wogman, N. S., Perkins, R. W., Vant Tuyl, R. L., Beauchamp, R. H., Shade, J. W., Daniel, J. L., Erikson, R. L., Sehmel, G. A., Lee, R. N., Robinson, A. V., Moss, O. R., Briant, J. K., Cannon, W. C. , (1980), Mount St. Helens ash from the 18 May 1980 eruption: Chemical, physical, mineralogical and biological properties, Science, 209, 1116-1125., 10.1126/science.209.4461.1116