Title: Murabito no shiro, sengoku daimyō no shiro : Hōjō Ujiteru no ryōgoku shihai to jōkaku /
Authors: Nakada, Masamitsu, 1946-
Publisher: Yōsensha,
Year: 2010
Subjects: Hōjō, Ujiteru,; Castles Japan Kantō Region.; Fortification Japan Kantō Region.; Historic sites Japan Kantō Region.; Japan History