Title: Shōwa Nijūgonen kokusei chōsayō shokugyō bunrui to Shōwa jūgonen kokusei chōa shokumei hyō ; 1950 nen Beikoku jinkō sensasu shokugyō bunrui ; Kokusai hyōjun shokugyō bunrui hikakuhyō
Places: Japan
Time periods: Census, 1950