APA

Krafft M., Nygren C. & Tingvall C.Rear seat occupant protection. A study of children and adults in the rear seat of cars in relation to restraint use and car characteristics. : Experimental safety vehicles. Twelfth.

Chicago

Krafft M, Nygren C and Tingvall C.Rear seat occupant protection. A study of children and adults in the rear seat of cars in relation to restraint use and car characteristics. : Experimental safety vehicles. Twelfth.

Harvard

Krafft M., Nygren C. and Tingvall C.Rear seat occupant protection. A study of children and adults in the rear seat of cars in relation to restraint use and car characteristics. : Experimental safety vehicles. Twelfth.

MLA

Krafft M, Nygren C and Tingvall C.: Experimental safety vehicles. Twelfth. .