http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
239.396 -- JONES, Fred R[ufus]: -- Farm Gas Engines and tractors. 2. ed., 11. impr. -- New York, London: McGraw-Hill 1938. XII, -- 486 S. 8° -- (McGraw-Hill publications in agricultural -- engineering.) -- 1950:2435.
McGraw-Hill publications in agricultural engineering