Citazione Stile APA (7a Edizione)

Williams, M. C. (1984). Effects of converting a zebra to a pelican crossing. Transport and Road Research Laboratory.

Citazione stile Chigago Style (17a edizione)

Williams, Marian C. Effects of Converting a Zebra to a Pelican Crossing. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1984.

Citatione MLA (9a ed.)

Williams, Marian C. Effects of Converting a Zebra to a Pelican Crossing. Transport and Road Research Laboratory, 1984.