http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Monthly (except Aug) with quarterly, annual, and biennial (triennial, 1916/18-1951/54) cumulations
Editors: 1916-18. N.T. Shimer.; 1919- F.A. Arnold and others.