Costs and benefits arising if all motorcyclists wore safety helmets

Podrobná bibliografie
Hlavní autor:	Allsop, R. E.
Korporativní autor:	Road Research Laboratory
Médium:	Kniha
Jazyk:	English
Vydáno:	Crowthorne Road Research Laboratory 1967.
Témata:	Motorcycling > Safety measures. Safety hats.