Rōjin hokenhō ni kakawaru hoken jigyō no jittai bunseki
Subtitle: Shōwa 60-nendo kōshū eiseigaku jisshū hōkokusho
By: [henshū Yamagata Daigaku Igakubu Kōshū Eiseigaku Kōza]
Series: Yamagata-ken no hoken iryō o kangaeru -- dai 9-shū
Publisher: Yamagata Daigaku Igakubu Kōshū Eiseigaku Kōza
Published: 1986
Place of publication: Yamagata-shi
Language: jpn
Number of pages: 77