http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bulletin from the laboratories of natural history of the State University of Iowa
Bulletin from the laboratories of natural history
Vols. 1-6, which are each in 4 numbers, contain from 12 to 25 papers each; beginning with v. 7, the papers are issued in the form of monographs.
University of Iowa studies in natural history (1918)
Bulletin of the State University of Iowa ; 1899-1916