APA

National Research Council, National Research Council & National Research Council. (1968). Highway costs and finance. Washingtopn, DC: Highway Research Board of the National Academy of Sciences.

Chicago

National Research Council, National Research Council and National Research Council. 1968. Highway costs and finance. Washingtopn, DC: Highway Research Board of the National Academy of Sciences.

Harvard

National Research Council, National Research Council and National Research Council. (1968). Highway costs and finance. Washingtopn, DC: Highway Research Board of the National Academy of Sciences.

MLA

National Research Council, National Research Council and National Research Council. Highway costs and finance. Washingtopn, DC: Highway Research Board of the National Academy of Sciences. 1968.