http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
The Structure and ontogeny of corvine social play of the rook (Corvus frugilegus, L.) and the hooded crow (Corvus corone cornix, L.)
D 197.014 -- -- Duvall, Fern Park -- The Structure and ontogeny of corvine social play -- of the rook <Corvus frugilegus, L.> and the hooded -- crow <Corvus corone cornix, L.> -- 1983. 301 S. 8° -- -- Berlin, Freie Univ., Fachbereich Biologie, Diss. -- 1983