Manual of leveling computation and adjustment /
Wedi'i Gadw mewn:
| Prif Awdur: | |
|---|---|
| Awdur Corfforaethol: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Washington :
U.S. Govt. Printing Office,
1948.
|
| Cyfres: | Special publication (U.S. Coast and Geodetic Survey) ;
240. |
| Pynciau: |
| Disgrifiad Corfforoll: | 178 p. ; 26cm. |
|---|