Jidō kannōshiki keitō shingōki
By: [henshū Kagaku Keisatsu Kenkyūjo]
Series: Kakeiken shiryō -- dai 27-gō
Publisher: Kagaku Keisatsu Kenkyūjo
Published: 1964
Place of publication: Tōkyō
Language: jpn
Number of pages: 42
Subjects: Traffic signs and signals
Notes: Cover title.

Includes bibliographical references (p. 1-2).