@book{27158,
	author = {Ranke, Leopold von and Duncker und Humblot},
	title = {Genesis des Preußischen Staates :},
	publisher = {Verlag von Duncker und Humblot,},
	year = {1874.},
	address = {Leipzig :},
	note = {Czcionka gotycka.},
	url = {https://www.google.pl/books/edition/Genesis_des_preussischen_Staates/AvBfAAAAcAAJ?hl=pl&gbpv=1}
}