Ikasō shigen, junkangata toshi o mezashite
Subtitle: saisei riyō rūto no kakuho kakujū no chōsa hōkokusho
Contributors: Tōkyō-to Shokuin Kenshūjo. Chōsa Kenkyūshitsu
Publisher: Tōkyō-to Seisōkyoku Sagyōka; Tōkyō-to Shokuin Kenshūjo Chōsa Kenkyūshitsu
Published: 1997
Place of publication: Tōkyō
Language: jpn
Number of pages: 153