Investigation of the accuracy of plotting and scaling-off /
Wedi'i Gadw mewn:
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
[s.l. :
s.n.],
1955.
|
| Cyfres: | Publication of the Netherlands Geodetic Commission.
|
| Pynciau: |
CARM 1 Store
| Rhif Galw: |
A2:AO22C0 C06977 |
|---|---|
| Copi 1 | Ar gael Gwneud Cais |