http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
G.A. Bell, formerly Senior Animal Husbandman, and J.O. Williams, Senior Animal Husbandman in Horse and Mule Investigations, Animal Husbandry Division, Bureau of Animal Industry.
"Issued December 1916; revised April, 1926."
Farmers' bulletin (United States. Department of Agriculture) ; no. 1030