Food and Agriculture Organization text Rome FAO 2001 Ind xi, 57 p. : ill. ; 29 cm.-- xi, 57 p. : ill. ; 29 cm.-- ROBERT, Michael SOIL MANAGEMENT SOIL ORGANIC MATTER 631.417.4 Sr. FAO ISBN 92-5-104690-5 INLIS000000000013320 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)