TY - RPRT TI - Lithium in flint clay, bauxite, related high-alumina materials and sedimentary rocks in the United States: a preliminary survey AU - Harry Allison Tourtelot AU - Elizabeth F. Brenner-Tourtelot PY - 1977 DO - 10.3133/ofr77786 UR - https://pubs.usgs.gov/publication/ofr77786 ID - ofr77786 ER -