APA

Transportation Research Record 1235, . (1989). In situ testing of soil properties for transportation. Washington DC: Transportation Research Record 1235.

Chicago

Transportation Research Record 1235, . 1989. In situ testing of soil properties for transportation. Washington DC: Transportation Research Record 1235.

Harvard

Transportation Research Record 1235, . (1989). In situ testing of soil properties for transportation. Washington DC: Transportation Research Record 1235.

MLA

Transportation Research Record 1235, . In situ testing of soil properties for transportation. Washington DC: Transportation Research Record 1235. 1989.