Jigyō gaiyō
By: [henshū Tōkyō-to Dōbutsu Kanri Jimusho]
Edition: Shōwa 56-nenban
Publisher: Tōkyō-to Dōbutsu Kanri Jimusho
Published: 1981
Place of publication: Tōkyō
Language: jpn
Number of pages: 107
Notes: Cover title.