PDF(529 KB)
PDF(529 KB)
PDF(529 KB)
陕北黄土丘陵沟壑区土地类型研究——以延安市附近为例
STUDY ON LAND TYPES OF LOESS HILLS AND GULLY AREAS IN NORTHERN SHANXI PROVINCE
| {{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
/
| 〈 |
|
〉 |