http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a survey of existing knowledge with particular reference to the filaments of radio valves
iv, 116 pages : tables, diagrams ; 25 cm.
At head of title: Department of Scientific and Industrial Research. Radio Research...
Special report (Great Britain. Radio Research Board) ; no. 11