题名责任: | a study of the influence of herbaceous plant cover on surface run-off and soil erosion in relation to grazing on the wasatch plateau in utah. |
---|---|
出版发行: | Washington, D. C. ::,United States Department of Agriculture. |
载体形态: | 72 p. :::pho., tab. ;::23 cm. |
馆藏信息: | YNAU///S///F733* |