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Wildlife management in the National Parks
A source of intermittent unipolar voltage pulses is connected across an electrode and a workpiece to be machined, defining between them an erosion gap which is swept by a continuously moving,Expand
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Life-forms and phytoclimate
Probably every science has had periods in its development when some phase was in fashion and courted by the scientifically sophisticated. In botany, emphasis has at one time or another been placed onExpand
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The Species-Area Curve
Jaccard (1912), one of the first who studied scientifically the species-area relationships, did not confine his observations to a single type of community. The areas with which he dealt were occupiedExpand
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Foundations of Plant Geography
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Foundations of plant geography
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Manual of Vegetation Analysis
Manual of vegetation analysis , Manual of vegetation analysis , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
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Studies on Virgin Hardwood Forest: III. Warren's Woods, A Beech-Maple Climax Forest in Berrien County, Michigan
ward K. Warren Foundation of Three Oaks, Berrien County, Michigan. The only recent modification of the area studied, north and west of the Galien River, a small, sluggish stream which penetrates theExpand
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