Green, H. (1980). Some effects on accidents of changes in light conditions at the beginning and end of British Summer Time. Transport and Road Research Laboratory.
Chicago Style aipamenaGreen, Hilary. Some Effects on Accidents of Changes in Light Conditions at the Beginning and End of British Summer Time. Crowthorne, Berk: Transport and Road Research Laboratory, 1980.
MLA aipamenaGreen, Hilary. Some Effects on Accidents of Changes in Light Conditions at the Beginning and End of British Summer Time. Transport and Road Research Laboratory, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.