APA

van Faassen F., Stassen E., Willig A., Zijp E., Bastiaanse J., Brockhoff H. & Oudesluys C. (1976). Air resistance of crash helmets. : Biomechanics of injury to pedestrians, cyclists and motorcyclists. Proceedings.

Chicago

van Faassen F, Stassen EGM, Willig AP, Zijp EM, Bastiaanse JC, Brockhoff HST and Oudesluys C. 1976. Air resistance of crash helmets. : Biomechanics of injury to pedestrians, cyclists and motorcyclists. Proceedings.

Harvard

van Faassen F., Stassen E., Willig A., Zijp E., Bastiaanse J., Brockhoff H. and Oudesluys C. (1976). Air resistance of crash helmets. : Biomechanics of injury to pedestrians, cyclists and motorcyclists. Proceedings.

MLA

van Faassen F, Stassen EGM, Willig AP, Zijp EM, Bastiaanse JC, Brockhoff HST and Oudesluys C. Air resistance of crash helmets. : Biomechanics of injury to pedestrians, cyclists and motorcyclists. Proceedings. 1976.