00602nas a22001453 4500 880608u xx u 0 0 0und Mechanization of Field Experiments in Semi-arid Areas. Proceedings of a regional conference 23rd-27th, 1987 Internationa Centre for Agricultural Research in the Dry Areas Norway; Norwegian Institute of Agricultural Engineering (NIANE) 1987, viii, 237p.: ill. Agricultural machinery 2916 Agriculture Research 2917 Diekmann Jurgen 2918 Karlsson Doris 2919 BK 1374 1374 0 0 lcc 0 -1 NFIC MAIN MAIN OOWR 2012-04-04 GFT 0 S 675 .M47 0019710 2012-04-04 00:00:00 1 2012-04-04 BK