TY - RPRT TI - Toxicity of selected elements to plants, animals, and man; an outline AU - L. P. Gough AU - Hansford Threlkeld Shacklette PY - 1976 DO - 10.3133/ofr76746 UR - https://pubs.usgs.gov/publication/ofr76746 ID - ofr76746 ER -