852 resultados para Pennsylvania Railroad.


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Elaboration of a report prepared in July, 1957.

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"Archived issue brief."

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Bibliography: p. 4-5.

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At head of title: Commonwealth of Pennsylvania ... Dept. of labor and industry ...

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Mode of access: Internet.

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Includes bibliographical references.

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Vols. for 1939/48- have cover title: Man-hours expended per car, selected types of railroad freight cars.