TY - BOOK AU - El Mowelhy,Nabil Mohamed TI - Genetic characteristics of slick spots in the soils of Egypt PY - 1972/// KW - Soil chemistry KW - Egypt KW - Soil KW - Analysis KW - Soils KW - Sodium content N1 - Thesis (Ph.D.)--Al-Azhar University, 1972; Includes bibliographical references (leaves 75-82); Microfiche; ASUNET; Ain Shams University; 2 microfiches : negative ER -