Shiritsu kōkō ni okeru gakkō itsukasei no genjō
Subtitle: Kyōmu Jitsumu Kenkyūkai chōsa hōkoku
Series: Chōsa shiryō -- 180; Chōsa shiryō (Nihon Shigaku Kyōiku Kenkyūjo) -- 180
Publisher: Nihon Shigaku Kyōiku Kenkyūjo
Published: 1993
Place of publication: Hachiōji-shi
Language: jpn
Number of pages: 76
Subjects: School week
Notes: Cover title.