Dyfyniad APA

Camden, A., Buliung, R., Rothman, L., Macarthur, C., & Howard, A. (2011). The impact of pedestrian countdown signals on pedestrian–motor vehicle collisions: A quasi-experimental study. BMJ Group.

Dyfyniad Arddull Chicago

Camden, Andi, Ron Buliung, Linda Rothman, Colin Macarthur, and Andrew Howard. The Impact of Pedestrian Countdown Signals On Pedestrian–motor Vehicle Collisions: A Quasi-experimental Study. BMJ Group, 2011.

Dyfyniad MLA

Camden, Andi, et al. The Impact of Pedestrian Countdown Signals On Pedestrian–motor Vehicle Collisions: A Quasi-experimental Study. BMJ Group, 2011.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.