http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
KRUSCHKE, Emil P.: -- The Hawthorns of Wisconsin. P.1. - Milwaukee: Board of Trustees 1955. 4° -- (Milwaukee Public Museum Publications in Botany. 2.) -- 1956:1672 a(P.1). -- P.
Milwaukee Public Museum Publications in Botany. 2