APA
Westberg H., Volvo Technology AB S. f. e. o. 5., . (2006040120100331). Energy Efficient Reduction of Exhausts from Vehicles. : Vägverket.
Chicago
Westberg Heije, Volvo Technology AB Svenskt företag eller organisation 556542-4321, . 2006040120100331. Energy Efficient Reduction of Exhausts from Vehicles. : Vägverket.
Harvard
Westberg H., Volvo Technology AB S. f. e. o. 5., . (2006040120100331). Energy Efficient Reduction of Exhausts from Vehicles. : Vägverket.
MLA
Westberg Heije, Volvo Technology AB Svenskt företag eller organisation 556542-4321, . Energy Efficient Reduction of Exhausts from Vehicles. : Vägverket. 2006040120100331.