TY - RPRT TI - Fractional precipitation of rare earths with phosphoric acid AU - M. K. Carron AU - C.R. Naeser AU - H. J. Rose AU - F.A. Hildebrand PY - 1958 DO - 10.3133/b1036n UR - https://pubs.usgs.gov/publication/b1036N ID - b1036N ER -