Two methods of estimating the U.S. demand for copper, lead and zinc, 1947-1960

Lead and zinc : report to the President, 1962 under Executive Order 10401

(1962)

Lead and zinc : report ot the President on Escape-Clause Investigation no. 65 under the provisions of section 7 of the Trade Agreements Extension Act of 1951, as amended

(1958)

Lead and zinc : report to the President on investigation No TEA-IA-3 under section 351, d, 2 of the Trade Expansion Act of 1962

(1965)