Progress report of HRB-AASHO Joint Committee on Maintenance and Operations Personnel.

Progress report of HRB-AASHO Joint Committee on Maintenance and Operations Personnel.

Библиографические подробности
Корпоративные авторы: HRB-AASHO Joint Committee on Maintenance and Operations Personnel, National Research Council (U.S.). Highway Research Board
Формат: ‌
Опубликовано: Washington, D.C. Highway Research Board
Серии:Highway Research Circular no. 140.
Предметы:
Highway departments > United States > Employees > Statistics.
Wages > Highway transport workers > United States.
Wages > Construction workers > United States.