Doran, J. W., Coleman, D., & Stewart, B. (2015). Defining soil quality for a sustainable environment: Proceedings of a symposium sponsored by divisions S-3, S-6, and S-2 of the Soil Science Society of America, division A-5 of the American Society of Agronomy, and the North Central Region Committee on Soil Organic Matter (NCR-59) in Minneapolis, MN, 4 - 5 November 1992. American Society of Agronomy, Inc.
Chicago-Zitierstil (17. Ausg.)Doran, John W., D.C Coleman, und B.A Stewart. Defining Soil Quality for a Sustainable Environment: Proceedings of a Symposium Sponsored by Divisions S-3, S-6, and S-2 of the Soil Science Society of America, Division A-5 of the American Society of Agronomy, and the North Central Region Committee on Soil Organic Matter (NCR-59) in Minneapolis, MN, 4 - 5 November 1992. Madison, Wisconsin, USA: American Society of Agronomy, Inc, 2015.
MLA-Zitierstil (9. Ausg.)Doran, John W., et al. Defining Soil Quality for a Sustainable Environment: Proceedings of a Symposium Sponsored by Divisions S-3, S-6, and S-2 of the Soil Science Society of America, Division A-5 of the American Society of Agronomy, and the North Central Region Committee on Soil Organic Matter (NCR-59) in Minneapolis, MN, 4 - 5 November 1992. American Society of Agronomy, Inc, 2015.