APA

Transportation Research Record nr 554, . (1975). Hazardous materials transportation and highway maintenance. Washington DC: Transportation Research Record nr 554.

Chicago

Transportation Research Record nr 554, . 1975. Hazardous materials transportation and highway maintenance. Washington DC: Transportation Research Record nr 554.

Harvard

Transportation Research Record nr 554, . (1975). Hazardous materials transportation and highway maintenance. Washington DC: Transportation Research Record nr 554.

MLA

Transportation Research Record nr 554, . Hazardous materials transportation and highway maintenance. Washington DC: Transportation Research Record nr 554. 1975.