Rōjin no toransupōto shisutemu (isōkei) no kisoteki kenkyū
Subtitle: purojekuto kenkyū hōkoku
By: [henshū, Tōkyō-to Sōmukyoku Sōmubu Soshiki Kanrika].
Publisher: Tōkyō-to Sōmukyoku
Published: 1981
Place of publication: Tokyo
Language: jpn
Number of pages: 213