Monthly Labour Survey, 1951: Survey Outline, Questionnaire, etc.

Establishments across Japan with 30 or more regular employees in mining, manufacturing, gas, electricity, and water, commerce, finance, and transportation and communication. However, in the prefectural surveys of some prefectures establishments with 10 or more regular employees were surveyed.

日本境内拥有30名或以上正式员工的采矿、制造、燃气、电力和水务、商业、金融以及交通运输等行业机构。然而，在一些府县的调查中，对拥有10名或以上正式员工的机构也进行了调研。