Ōkawa iseki hakkutsu chōsa gaihō
Series: Yoichigawa kaishū jigyō ni tomonau maizō bunkazai hakkutsu chōsa no gaiyō -- 5; Yoichigawa kaishū jigyō ni tomonau maizō bunkazai hakkutsu chōsa no gaiyō -- 5.
Publisher: Yoichi-chō Kyōiku Iinkai
Published: 1994
Place of publication: Yoichi-chō (Hokkaidō)
Language: jpn
Number of pages: 90
Other titles: 1993-nendo Ōkawa iseki hakkutsu chōsa gaihō