Sources and methods for measuring the primary information sector (detailed industry reports)

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Sources and methods for measuring the primary information sector (detailed industry reports)

Marc Uri Porat

（OT special publication, 77-12(2) . The information economy）

U.S. Dept. of Commerce, Office of Telecommunications , For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977

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注記

"Prepared by the Office of Telecommunications with partial support of National Science Foundation"

Includes bibliographical references

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  • OT special publication

    U.S. Dept. of Commerce, Office of Telecommunications , For sale by the Supt. of Docs., U.S. Govt. Print. Off

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