The books he cited in the first six volumes add up to 80 and the main ones were "Gokinai shi" (Book on the Gokinai Capital Region), "Washu Junran ki" (Journey of Yamato) and "Washu Kyuseki ki" (Historic Scenes of Yamato).
最初の6巻で引用された文献のみでも80種をかぞえ、主なものには『五畿内志』、『和州巡覧記』、『和州旧蹟記』がある。