Hon. Carl L. Bucki (3 May 1996). "Constitution Day: May 3, 1791". Polish Academic Information Center. Archived from the original on 5 December 2008. Retrieved 21 September 2008.
web.archive.org
Hon. Carl L. Bucki (3 May 1996). "Constitution Day: May 3, 1791". Polish Academic Information Center. Archived from the original on 5 December 2008. Retrieved 21 September 2008.
worldcat.org
Juliusz Bardach; Boguslaw Lesnodorski; Michal Pietrzak (1987). Historia panstwa i prawa polskiego [History of Polish State and Law] (in Polish). Warsaw: Panstwowe Wydawnictwo Naukowe. p. 317. OCLC654549824.