The extension project "Toward Increased Cuttings". -A study of the National Board of Forestry's extension campaign among non-industrial private forest owners. Report No 25
Roos Anders
Uppsala : The Swedish University of Agricultural Sciences, Department of Forest-Industry-Market Studies , 1992. - 53 s.: obr., 10 tab.
xkni - KNIHY
1, z toho voľných 1