APA

TFK+VTI Transportforschung GmbH, . (1990). New strategies for freight transport. A Nordic conference for European transport issues, October 31-November 1, 1989 , Hamburg. Proceedings. Hamburg: TFK+VTI Transportforschung GmbH.

Chicago

TFK+VTI Transportforschung GmbH, . 1990. New strategies for freight transport. A Nordic conference for European transport issues, October 31-November 1, 1989 , Hamburg. Proceedings. Hamburg: TFK+VTI Transportforschung GmbH.

Harvard

TFK+VTI Transportforschung GmbH, . (1990). New strategies for freight transport. A Nordic conference for European transport issues, October 31-November 1, 1989 , Hamburg. Proceedings. Hamburg: TFK+VTI Transportforschung GmbH.

MLA

TFK+VTI Transportforschung GmbH, . New strategies for freight transport. A Nordic conference for European transport issues, October 31-November 1, 1989 , Hamburg. Proceedings. Hamburg: TFK+VTI Transportforschung GmbH. 1990.