Modern practice in the construction and maintenance of rail joints and bonds in electric railways
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書誌事項
Modern practice in the construction and maintenance of rail joints and bonds in electric railways
（Technologic papers / Bureau of Standards, no. 62）
Government Printing Office, 1920
2nd ed
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注記
At head of title: Department of Commerce
Bibliography: p. 123
Inculding an appendix describing recent developments and improvements. Issued February 9, 1920