Progress report on maintenance and operations personnel.

書誌詳細
団体著者:	National Research Council (U.S.). Transportation Research Board
フォーマット:	図書
言語:	English
出版事項:	Washington, D.C. Transportation Research Board, National Research Council [1987]
シリーズ:	Transportation Research Circular Number 314
主題:	Highway departments > United States > Employees. Highway engineers > United States > Salaries, pensions, etc. Wages > Road construction workers > United States.