Poršnev, B. F. (1964). Feodalizm i narodnye massy. Izdat. Nauka.
Chicago Style (17th ed.) CitationPoršnev, Boris Fedorovič. Feodalizm I Narodnye Massy. Moskva: Izdat. Nauka, 1964.
MLA (9th ed.) CitationPoršnev, Boris Fedorovič. Feodalizm I Narodnye Massy. Izdat. Nauka, 1964.
Warning: These citations may not always be 100% accurate.