"Szwagrów, wieś, gmina Osiek — obszar wiejski, powiat staszowski, województwo świętokrzyskie" [Szwagrów, village, Osiek Commune — rural area, Staszów County, Świętokrzyskie Province, Poland]. Topographical map prepared in 1:10,000 scale. Aerial and satellite orthophotomap (in Polish). Head Office of Geodesy and Cartography, Poland, Warsaw. 2011. geoportal.gov.pl. Retrieved 27 April 2011.
iap.pl
bip.osiek.iap.pl
Rękas, Przemysław (16 January 2012). "Wykaz sołectw Gminy Osiek" [List of sołectwos of Commune and Municipality Office of Osiek]. The administrative power / An estate in Osiek and index of sołectwos (in Polish). Public Information Bulletin of Commune and Municipality Office of Osiek, Poland. bip.osiek.iap.pl. Retrieved 19 January 2012.
