Natural vegetation strips (NVS) and Gmelina Cropping systems text Canberra The Australian National University 1998 19 p. ill; 30 cm GMELINA CROPPING SYSTEM 634.0.81 634.0.81 INLIS000000000003294 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)