National Cooperative Highway Research Program, American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, & Venner, M. (2006). Control of invasive species: A synthesis of highway practice. Transportation Research Board, National Research Council.
Chicago-referens (17:e uppl.)National Cooperative Highway Research Program, American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, och Marie Venner. Control of Invasive Species: A Synthesis of Highway Practice. Washington, D.C: Transportation Research Board, National Research Council, 2006.
MLA-referens (9:e uppl.)National Cooperative Highway Research Program, et al. Control of Invasive Species: A Synthesis of Highway Practice. Transportation Research Board, National Research Council, 2006.