Symposium on Herbicides and Vegetation Management. (1967). Herbicides and vegetation management: Proceedings. School of Forestry, Oregon State University.
Lua i Stíl Chicago (17ú heag.)Symposium on Herbicides and Vegetation Management. Herbicides and Vegetation Management: Proceedings. School of Forestry, Oregon State University, 1967.
Lua MLA (9ú heag.)Symposium on Herbicides and Vegetation Management. Herbicides and Vegetation Management: Proceedings. School of Forestry, Oregon State University, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.