Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

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.

Cita MLA (9th ed.)

National Cooperative Highway Research Program, et al. Snow and Ice Control: Guidelines for Materials and Methods. Transportation Research Board, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.