text Rome FAO 1995 Ind xii, 134 p.: ill.; 30 cm xii, 134 p.: ill.; 30 cm FAO Irrigation and Drainage Paper No. 51 RYCROFT, DAVID W CLAY SOILS DRAINAGE AGRICULTURAL DEVELOPMENT 631.62 ISBN: 92-5-103624-1 INLIS000000000006570 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)