APA

Technical Methods for Highways, TMH 7:1989. Part 3 & [Committee of State Road Authorities]. (1989). Code of practice for the design of highway bridges and culverts in South Africa. Pretoria: Technical Methods for Highways.

Chicago

Technical Methods for Highways, TMH 7:1989. Part 3 and [Committee of State Road Authorities]. 1989. Code of practice for the design of highway bridges and culverts in South Africa. Pretoria: Technical Methods for Highways.

Harvard

Technical Methods for Highways, TMH 7:1989. Part 3 and [Committee of State Road Authorities]. (1989). Code of practice for the design of highway bridges and culverts in South Africa. Pretoria: Technical Methods for Highways.

MLA

Technical Methods for Highways, TMH 7:1989. Part 3 and [Committee of State Road Authorities]. Code of practice for the design of highway bridges and culverts in South Africa. Pretoria: Technical Methods for Highways. 1989.