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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.