APA
Transportation Research Record 1231, . (1989). Analysis, design, and behaviour of underground culverts. Washington DC: Transportation Research Record 1231.
Chicago
Transportation Research Record 1231, . 1989. Analysis, design, and behaviour of underground culverts. Washington DC: Transportation Research Record 1231.
Harvard
Transportation Research Record 1231, . (1989). Analysis, design, and behaviour of underground culverts. Washington DC: Transportation Research Record 1231.
MLA
Transportation Research Record 1231, . Analysis, design, and behaviour of underground culverts. Washington DC: Transportation Research Record 1231. 1989.