Guidelines for modern resource management : Soil - land - water - air text Columbus Charles E. Merril 1983 eng MANAJEMEN 658.002 02 658.002 02 Gre g -1 INLIS000000000026258 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)