Chichibu Kaminagatoro kofungun ʼ90
Subtitle: hakkutsu chōsa hōkokusho
Publisher: Nagatoro-machi Kaminagatoro Kofun-gun Hakkutsu Chōsakai
Published: 1991
Place of publication: Saitama-ken Nagatoro-machi
Language: jpn
Number of pages: 48