text Rome FAO 1993 Ind xiv, 190 p.: ill.; 30 cm. xiv, 190 p.: ill.; 30 cm. Bibl.: p.167-190 FOOD AND AGRICULTURE ORGANIZATION. LAND AND WATER DEVELOPMENT DIVISION SOIL CHEMICOPHYSICAL PROPERTIES TILLAGE AFRICA 631.4 92-5-103442-7 INLIS000000000004176 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)