Peters, R. (1987). Practical intelligence: Working smarter in business and everyday life. Harper & Row.
Citace podle Chicago (17th ed.)Peters, Roger. Practical Intelligence: Working Smarter in Business and Everyday Life. New York: Harper & Row, 1987.
Citace podle MLA (9th ed.)Peters, Roger. Practical Intelligence: Working Smarter in Business and Everyday Life. Harper & Row, 1987.
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