APA (7th ed.) Citation

Papua New Guinea. Department of Public Works. (1972). Papua New Guinea road classification and design standards: Rural roads. Dept. of Public Works.

Chicago Style (17th ed.) Citation

Papua New Guinea. Department of Public Works. Papua New Guinea Road Classification and Design Standards: Rural Roads. [Port Moresby]: Dept. of Public Works, 1972.

MLA (9th ed.) Citation

Papua New Guinea. Department of Public Works. Papua New Guinea Road Classification and Design Standards: Rural Roads. Dept. of Public Works, 1972.