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H. M. Gregersen · Food and Agriculture Organization of the United Nations
134 sayfa · 1992
Evaluation / Forestry projects
H. M. Gregersen · Published for Resources for the Future by Johns Hopkins University Press
113 sayfa · 1975
American Investments / Economic aspects / Economic aspects of Forests and forestry / Forest products industry / Forests and forestry
H. M. Gregersen, H. Gregersen, P. Ffolliott, K. Brookes · CABI
288 sayfa · 2007
Watershed management / Land use / Water quality management / Conservation of natural resources / Agriculture & related industries
H. M. Gregersen, Dieter Elz · Banco Mundial
273 sayfa · 1989
Social forestry programs / Forests and forestry / Social aspects
Kenneth N. Brooks, Peter F. Ffolliott, H. M. Gregersen, Leonard F. Debano · Wiley & Sons, Incorporated, John
552 sayfa · 2002
Hydraulic engineering / Engineering - Hydraulic / Agriculture - General / Science / Watershed management
H. M. Gregersen, Peter Oram, John Spears · International Food Policy Research Institute
95 sayfa · 1992
Congresses / Forest policy / Government policy / Agroforestry / Research
Stephen E. McGaughey, H. M. Gregersen · Inter-American Development Bank
215 sayfa · 1983
Congresses / Forests and forestry / Economic aspects
H. M. Gregersen · Food and Agriculture Organization of the United Nations
72 sayfa · 1993
Evaluation / Forestry projects
H. M. Gregersen · Food and Agriculture Organization of the United Nations
193 sayfa · 1979
Economic aspects / Economic aspects of Forestry projects / Forestry projects / Forests and forestry, economic aspects
H. M. Gregersen · Agricultural Experiment Station, University of Minnesota]
65 sayfa · 1979
Economic aspects / Economic aspects of Forests and forestry / Forest policy / Forests and forestry / Subsidies
H. M. Gregersen · Food Agriculture Organization of the United Nations
120 sayfa · 1992
Forests and forestry / Management / Research
H. M. Gregersen · FAO
144 sayfa · 1987
Watershed management / Evaluation / Economic aspects / Economic development projects
H. M. Gregersen · Food and Agriculture Organization of the United Nations
53 sayfa · 1995
Valuation / Economic aspects / Forests and forestry
H. M. Gregersen · National Technical Information Service
171 sayfa · 1983
Forest products industry / Lumber trade