1. 1
   Railway track and structures : RT & S.

   Chicago : Simmons Boardman Pub. Corp.

   New York : Simmons-Boardman Pub. Corp.

   主题: “...Railroad engineering Periodicals....”
   

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   ProQuest - American Periodicals from the Center for Research Libraries
   

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2. 2
   Russian metallurgy

   New York : Pleiades Publishing

   1 online resource

   Also issued in print.

   主题: “...Mechanical and Electronic Engineering...”
   

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   Center for Research Libraries
   

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