{"id":"001588630","type":"book","title":"Chłopi w monarchii wczesnopiastowskiej","publisher":"Zakład Narodowy imienia Ossolińskich; Wydawnictwo Polskiej Akademii Nauk","publisher-place":"Wrocław [u.a","author":[{"family":"Modzelewski","given":"Karol"}],"issued":{"raw":"1987"}}