TY - BOOK AU - Harbuck, D. D. ED - United States. TI - Gallium and germanium recovery from domestic sources T2 - Report of investigations PY - 1992/// CY - [Washington, D.C.] PB - U.S. Dept. of the Interior, Bureau of Mines KW - Gallium KW - Metalurgy KW - Germanium KW - Leaching KW - Solvent extraction ER -