Pointo kaisetsu, anzen eisei
By: [henshū Tōkyō-to Rōdō Keizaikyoku Rōseibu Rōdō Kumiaika]
Publisher: Tōkyō-to Rōdō Keizaikyoku
Published: 1990
Place of publication: Tōkyō
Language: jpn
Number of pages: 81