Japan productivity center. (1985). Pratical handbook of productivity and labour statistics 1987-1988: Statistical data on productivity, wages and prices. Tokyo: Japan productivity center.
Styl cytowania ChicagoJapan productivity center. Pratical Handbook of Productivity and Labour Statistics 1987-1988: Statistical Data On Productivity, Wages and Prices. Tokyo: Japan productivity center, 1985.
Styl cytowania MLAJapan productivity center. Pratical Handbook of Productivity and Labour Statistics 1987-1988: Statistical Data On Productivity, Wages and Prices. Tokyo: Japan productivity center, 1985.
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