American Telephone and Telegraph Company. The Bell journal of economics and management science. American Telephone and Telegraph Co.].
Citace podle Chicago (17th ed.)American Telephone and Telegraph Company. The Bell Journal of Economics and Management Science. [New York: American Telephone and Telegraph Co.].
Citace podle MLA (8th ed.)American Telephone and Telegraph Company. The Bell Journal of Economics and Management Science. American Telephone and Telegraph Co.].
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