http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Monthly (bimonthly Jan./Feb. and Aug./Sept.)
Beginning July 1929 this publication incorporated the Mond Nickel Bulletin, and the Literature Reference Memoranda of the Bureau of Nickel.
Literature reference memoranda of the bureau of nickel