Sheppard, D. (1982). The availability of books on driving. Transport and Road Research Laboratory.
Chicago-referens (17:e uppl.)Sheppard, D. The Availability of Books on Driving. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1982.
MLA-referens (9:e uppl.)Sheppard, D. The Availability of Books on Driving. Transport and Road Research Laboratory, 1982.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.