(1981). Year book of labour statistics 1981. Japan: Statistics andInformation Department, Minister's Secretariat, Ministry of Labour.
Styl cytowania ChicagoYear Book of Labour Statistics 1981. Japan: Statistics andInformation Department, Minister's Secretariat, Ministry of Labour, 1981.
Styl cytowania MLAYear Book of Labour Statistics 1981. Japan: Statistics andInformation Department, Minister's Secretariat, Ministry of Labour, 1981.
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