cam a22 1 4500 534810314 CHVBK 20190923050735.0 170419s1992 sz a f00 eng d (SNL)991003868589703976 (Sz)116545-41snl_51 (Sz)vtls000116545 (Sz)000116545 Sz SAZ Alemayehu Million The effect of traditional ditches on soil erosion and production on-farm trials in Western Gojam, Dega Damot Awraja Million Alemayehu [Berne] University of Berne, Switzerland [etc.] 1992. VIII, 33 S. Ill. 30 cm. txt rdacontent n rdamedia nc rdacarrier Soil conservation research project. Research report 22 Am Kopf des Titelbl.: Transitional Government of Ethiopia, Ministry of Agriculture and Environmental Protection, Natural Resources Conservation and Development Main Department, Community Forests and Soil Conservation Development Department Literaturverz. Bodenerosion (DE-588)4007367-1 gnd Godjam West (DE-588)4741787-0 gnd 631.4 snl local sb 1993/22 22 snl-sb Ethiopia Community Forests and Soil Conservation Development Department Universität Bern (DE-588)2023768-6 Soil conservation research project. Research report 22 SNL 100 0- Alemayehu Million SNL 490 1- Soil conservation research project. Research report 22 SNL 710 2- Ethiopia Community Forests and Soil Conservation Development Department SNL 710 1- Universität Bern (DE-588)2023768-6 SNL 830 -- Soil conservation research project. Research report 22 SWISSBIB 315405899 ORANGE 315405899 BK020000 XK020000 XK020000 SNL NB001 NB001 Pq 23545/22 NB10011