Japan productivity center. (1985). Pratical handbook of productivity and labour statistics 1985: Statistical data on productivity, wages and prices. Tokyo: Japan productivity center.
Παραπομπή Chicago StyleJapan productivity center. Pratical Handbook of Productivity and Labour Statistics 1985: Statistical Data On Productivity, Wages and Prices. Tokyo: Japan productivity center, 1985.
Παραπομπή MLAJapan productivity center. Pratical Handbook of Productivity and Labour Statistics 1985: Statistical Data On Productivity, Wages and Prices. Tokyo: Japan productivity center, 1985.
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