Babson, R. W. (1923). Business fundamentals: How to become a successful business man. B.C. Forbes Pub. Co.
Citace podle Chicago (17th ed.)Babson, Roger Ward. Business Fundamentals: How to Become a Successful Business Man. New York: B.C. Forbes Pub. Co, 1923.
Citace podle MLA (8th ed.)Babson, Roger Ward. Business Fundamentals: How to Become a Successful Business Man. B.C. Forbes Pub. Co, 1923.
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