http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
261.839 -- SAFETY aviation medical -- Aviation medical safety.Training Manual. -- [Washington]:Aviation Training Division -- 1961. VI,319 S.mit Abb. 4° [Umschlagt.] -- [Rotapr.] -- 1962: 268. -- Ho..