National Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board, American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, & Blackburn, R. R. (2004). Snow and ice control: Guidelines for materials and methods. Transportation Research Board.
Cytowanie według stylu Chicago (wyd. 17)National Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board, American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, i R. R. Blackburn. Snow and Ice Control: Guidelines for Materials and Methods. Washington, D.C: Transportation Research Board, 2004.
Cytowanie według stylu MLA (wyd. 9)National Cooperative Highway Research Program, et al. Snow and Ice Control: Guidelines for Materials and Methods. Transportation Research Board, 2004.