TY - BOOK ED - United States. TI - Depletion of mines: hearings, 71st Congress, 3d session, Dec. 9-12, 1930 [with index] PY - 1930/// CY - [Washington, D.C.] KW - Depletion allowances KW - Law and legislation KW - United States KW - Mines and mineral resources N1 - Document for sale by the Superintendent of Documents, paper; CRDP Program Historic Shelflist record ER -