The nautical almanac for the year 1987.
| Fformat: | Llyfr |
|---|---|
| Iaith: | English |
| Cyhoeddwyd: |
Washington, D.C.
U.S. Govt.Print. Off.
1985
|
| Pynciau: |
| Fformat: | Llyfr |
|---|---|
| Iaith: | English |
| Cyhoeddwyd: |
Washington, D.C.
U.S. Govt.Print. Off.
1985
|
| Pynciau: |