Παραπομπή APA
(1977). How to increase productivity: A practical quide to improving the performance of your company's human resources. New York: Alexander Hamilton Institute.
Παραπομπή Chicago StyleHow to Increase Productivity: A Practical Quide to Improving the Performance of Your Company's Human Resources. New York: Alexander Hamilton Institute, 1977.
Παραπομπή MLAHow to Increase Productivity: A Practical Quide to Improving the Performance of Your Company's Human Resources. New York: Alexander Hamilton Institute, 1977.
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