1. Barkley , Paul W. Some Economic Features of Agriculture and Forestry in the Lower Main Stem Area of the Colorado River, RDED, ERS U. S. Department of Agriculture Logan, Utah 1964
2. Salt tolerance of plants;Bernstein;U. S. Dept. Agr. Inf. Bull.,1964
3. Bernstein , Leon Salt tolerance of plants and the potential use of saline waters for irrigation, Desalination Res. Conf., National Academy of Sciences, National Research Council Publication 942 1961
4. Bower , C. A. Prediction of the effects of irrigation waters on soils, Proceedings Unesco Arid Zone Symposium 1961