Kokusai hyōjun shokugyō bunrui
Subtitle: 1988-nen kaiteiban
Contributors: Nihon Rōdō Kenkyū Kikō
Series: Shiryō shirīzu -- no. 30
Publisher: Nihon Rōdō Kenkyū Kikō
Published: 1993
Place of publication: Tōkyō
Language: jpn
Number of pages: 40
Subjects: Classification; Occupations
Notes: Written by Okamoto Hideo. Cf. Fourth prelim. page.