Specifications for establishment and maintenance of trigonometrical stations.
Saved in:
| 企业作者: | |
|---|---|
| 格式: | 图书 |
| 语言: | English |
| 出版: |
Sydney :
Department of Lands,
1975.
|
| 主题: |
| 实物描述: | 5 l. : ill. ; 31 cm. |
|---|