Jigyō gaiyō
By: [henshū Tōkyō Toritsu Shōni Hokenʼin]
Edition: Shōwa 51-nenban
Publisher: Tōkyō Toritsu Shōni Hokenʼin
Published: 1977
Place of publication: Hachiōji-shi
Language: jpn
Number of pages: 45
Notes: Cover title.