Lewis, J. P., & Turner, R. C. (1967). Business conditions analysis (Second edition.). McGraw-Hill Book company.
Citace podle Chicago (17th ed.)Lewis, John Prior, a Robert Clemens Turner. Business Conditions Analysis. Second edition. New York: McGraw-Hill Book company, 1967.
Citace podle MLA (9th ed.)Lewis, John Prior, a Robert Clemens Turner. Business Conditions Analysis. Second edition. McGraw-Hill Book company, 1967.
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