Dōro ni kansuru gyōsei kansatsu (ippan dōro) kekka hōkokusho
Publisher: Sōmuchō Gyōsei Kansatsukyoku
Published: 1991
Place of publication: [Tokyo]
Language: jpn
Number of pages: 110
Subjects: Roads; Inspection; Safety measures
Notes: Cover title.

"F 18."