National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Meeting, & National Research Council (U.S.). Committee on Maintenance and Operations Costs. (1972). Maintenance systems: Estimating maintenance costs, solid-waste disposal systems, maintenance station locations, manager training, and equipment management ; 7 reports. Highway Research Board.

National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Meeting, and National Research Council (U.S.). Committee on Maintenance and Operations Costs. Maintenance Systems: Estimating Maintenance Costs, Solid-waste Disposal Systems, Maintenance Station Locations, Manager Training, and Equipment Management ; 7 Reports. Washington, D.C: Highway Research Board, 1972.

National Research Council (U.S.). Highway Research Board, et al. Maintenance Systems: Estimating Maintenance Costs, Solid-waste Disposal Systems, Maintenance Station Locations, Manager Training, and Equipment Management ; 7 Reports. Highway Research Board, 1972.