APA

Urbanek G., Rogers R., . (1978). Alternative surveillance concepts and methods for freeway incident management. Vol 1. Washington DC: Peat, Marwick, Mitchell & Co.

Chicago

Urbanek GL, Rogers RW, . 1978. Alternative surveillance concepts and methods for freeway incident management. Vol 1. Washington DC: Peat, Marwick, Mitchell & Co.

Harvard

Urbanek G., Rogers R., . (1978). Alternative surveillance concepts and methods for freeway incident management. Vol 1. Washington DC: Peat, Marwick, Mitchell & Co.

MLA

Urbanek GL, Rogers RW, . Alternative surveillance concepts and methods for freeway incident management. Vol 1. Washington DC: Peat, Marwick, Mitchell & Co. 1978.