Cita APA (7th ed.)

Downing, C. S., Murray, G., & Durow, C. (1981). Trials of a road safety booklet for a pre-school traffic club. Transport and Road Research Laboratory.

Cita Chicago (17th ed.)

Downing, C. S., Gill Murray, i Christine Durow. Trials of a Road Safety Booklet for a Pre-school Traffic Club. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.

Cita MLA (9th ed.)

Downing, C. S., et al. Trials of a Road Safety Booklet for a Pre-school Traffic Club. Transport and Road Research Laboratory, 1981.