Northwest Conference on Road Building Oregon State College, Corvallis. (1953). Proceedings of the 1953 Northwest Conference on Road Building [February 26-27, 1953, Oregon State College]. Engineering Experiment Station, Oregon State System of Higher Education, Oregon State College.
Lua i Stíl Chicago (17ú heag.)Northwest Conference on Road Building Oregon State College, Corvallis. Proceedings of the 1953 Northwest Conference on Road Building [February 26-27, 1953, Oregon State College]. Corvallis: Engineering Experiment Station, Oregon State System of Higher Education, Oregon State College, 1953.
Lua MLA (8ú heag.)Northwest Conference on Road Building Oregon State College, Corvallis. Proceedings of the 1953 Northwest Conference on Road Building [February 26-27, 1953, Oregon State College]. Engineering Experiment Station, Oregon State System of Higher Education, Oregon State College, 1953.