TY - RPRT TI - Geochemical variability of soils and biogeochemical variability of plants in the Piceance Basin, Colorado AU - M. L. Tuttle AU - R. C. Severson AU - W.E. Dean AU - R.W. Klusman PY - 1986 DO - 10.3133/pp1134e UR - https://pubs.usgs.gov/publication/pp1134E ID - pp1134E ER -