APA

Ruden R., Wasser C., Hulbert S. & Burg A. (1977). Motorists' requirements for active grade crossing warning devices. San Ramon, CA: MBAssociates. Report nr 77/72.

Chicago

Ruden RJ, Wasser CF, Hulbert S and Burg A. 1977. Motorists' requirements for active grade crossing warning devices. San Ramon, CA: MBAssociates. Report nr 77/72.

Harvard

Ruden R., Wasser C., Hulbert S. and Burg A. (1977). Motorists' requirements for active grade crossing warning devices. San Ramon, CA: MBAssociates. Report nr 77/72.

MLA

Ruden RJ, Wasser CF, Hulbert S and Burg A. Motorists' requirements for active grade crossing warning devices. San Ramon, CA: MBAssociates. Report nr 77/72. 1977.