APA aipamena

National Research Council (U.S.). Transportation Research Board. (1997). Pedestrian and bicycle research 1997. National Academy Press.

Chicago Style aipamena

National Research Council (U.S.). Transportation Research Board. Pedestrian and Bicycle Research 1997. Washington, D.C: National Academy Press, 1997.

MLA aipamena

National Research Council (U.S.). Transportation Research Board. Pedestrian and Bicycle Research 1997. National Academy Press, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.