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Die atmosphärischen Kondensationskerne in ihrer physikalischen, meteorologischen und bioklimatischen Bedeutung
Flohn, H. ; Burckhardt, H.
Berlin, Heidelberg: Springer Berlin Heidelberg
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2
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Das Nordpolargebiet: Seine Natur, Bedeutung und Erforschung
Breitfuss, Leonid
Berlin, Heidelberg: Springer Berlin Heidelberg
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3
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Stadtplanung, Landesplanung, Raumordnung: Vorträge und Berichte
Wiesbaden: VS Verlag für Sozialwissenschaften
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4
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all-electric greenhouse
Roberts, John ; Wadsworth, S. E
Pullman, Wash: State College of Washington, Agricultural Experiment Station 1941
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5
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Conservation of vegetation in East Africa
Edwards, D.C
Bulletin agricole du Congo, 1949, Vol.40 (1), p.689-702
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6
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Watershed forestry to safeguard our soil, water, and timber
Frank, Bernard
Columbus, Ohio: Central States Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture 1951
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7
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Watershed management considerations for sanitation-salvage logging in southern California
Hopkins, Walt
Research note (California Forest and Range Experiment Station) ; no. 121, 1957
Berkeley, Calif: California Forest and Range Experiment Station
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8
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Yugoslavia - Prevention of erosion and torrent action - Report to the government
NAEGELI G
1957
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9
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World forest inventory, 1958
Rome (Italy) FAO 1960
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10
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News Script: Trinity River meeting
WBAP-TV (Television station : Fort Worth, Tex.)
1962
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