Principles of mining: valuation, organization and administration; copper, gold, lead, silver, tin and zinc,

Mode of access: Internet.

Composition of concentrate by-product feeding stuffs.

Mode of access: Internet.

Lead and zinc problems. Hearings, Eighty-seventh Congress, first session, on problems pertaining to the lead and zinc industry and consideration of S. 1747. May 4-5, and July 25, 1961.

Mode of access: Internet.

Preliminary report on the lead and zinc of Oklahoma /

Mode of access: Internet.

Zinc coating (hot galvanizing); a bibliography

"United States patents": numb. leaves 74-90. "British patents": numb. leaves 91-110.