http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
GÓRA, Witold: -- Zasady buchalteryi pojedynczej.--Lemberg 1907. -- In Programm: LEMBERG, Akad.handlowa. -- Jg 8(1906/07.)