Maruho kofungun hakkutsu chōsa hōkokusho
By: [henshū Kōsei-chō Kyōiku Iinkai]
Publisher: Kōsei-chō Kyōiku Iinkai
Published: 1989
Place of publication: Kōka-gun Kōsei-chō
Language: jpn
Number of pages: 18
Notes: Title page dated 1988.