APA

Technical Methods for Highways. TMH 5:1981, [Committee of State Road Authorities], . (1981). Sampling methods for road construction materials. Pretoria: Technical Methods for Highways. TMH 5:1981.

Chicago

Technical Methods for Highways. TMH 5:1981, [Committee of State Road Authorities], . 1981. Sampling methods for road construction materials. Pretoria: Technical Methods for Highways. TMH 5:1981.

Harvard

Technical Methods for Highways. TMH 5:1981, [Committee of State Road Authorities], . (1981). Sampling methods for road construction materials. Pretoria: Technical Methods for Highways. TMH 5:1981.

MLA

Technical Methods for Highways. TMH 5:1981, [Committee of State Road Authorities], . Sampling methods for road construction materials. Pretoria: Technical Methods for Highways. TMH 5:1981. 1981.