http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
General principles of law of the Polish People's Republic
Państwowe Wydawnictwo Naukowe (1951-1992)
editor-in-chief Leon Kurowski ; translators: Marek Gołębiowski, Witold Kmiecik, Beata Krupska, Anna Równy, Alina Sarnacka ; University of Warsaw. Faculty of Law and Administration.