National Research Council (U.S.). Steering Committee for Frontiers in Soil Science Research & ebrary, Inc. (2009). Frontiers in soil science research: Report of a workshop. National Academies Press.
Lua i Stíl Chicago (17ú heag.)National Research Council (U.S.). Steering Committee for Frontiers in Soil Science Research agus Inc ebrary. Frontiers in Soil Science Research: Report of a Workshop. Washington, D.C.: National Academies Press, 2009.
Lua MLA (9ú heag.)National Research Council (U.S.). Steering Committee for Frontiers in Soil Science Research agus Inc ebrary. Frontiers in Soil Science Research: Report of a Workshop. National Academies Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.