(1969). Year book of labour statistics 1969. Japan: Statistics and Information Department, Minister's Secretariat, Ministry of Labour.
Trích dẫn kiểu ChicagoYear Book of Labour Statistics 1969. Japan: Statistics and Information Department, Minister's Secretariat, Ministry of Labour, 1969.
ציטוט MLAYear Book of Labour Statistics 1969. Japan: Statistics and Information Department, Minister's Secretariat, Ministry of Labour, 1969.
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