Annual Meetings of the Soil Science Society of America and the American Society of Agronomy Columbus, O., Bartelli, L. J., Klingebiel, A. A., Baird, J. V., & Heddleson, M. R. (1966). Soil surveys and land use planning. Madison, Wisconsin: Soil Science Society of America ; American Society of Agronomy.

Annual Meetings of the Soil Science Society of America and the American Society of Agronomy Columbus, Ohio), L. J. Bartelli, A. A. Klingebiel, J. V. Baird, and M. R. Heddleson. Soil Surveys and Land Use Planning. Madison, Wisconsin: Soil Science Society of America ; American Society of Agronomy, 1966.

Annual Meetings of the Soil Science Society of America and the American Society of Agronomy Columbus, Ohio), et al. Soil Surveys and Land Use Planning. Madison, Wisconsin: Soil Science Society of America ; American Society of Agronomy, 1966.