| Bryan George S. (preface) |
| Tables of computed altitude and azimuth |
| Latitudes 50 to 59 degrees |
| in english |
| USA 1940 |
| Sid. |
| 265s. |
| Aiheet: Purjehdus, meri |
| Kunto: 3+ |
| Hinta: 7.50 € |
| Bryan George S. (preface) |
| Tables of computed altitude and azimuth |
| Latitudes 50 to 59 degrees |
| in english |
| USA 1940 |
| Sid. |
| 265s. |
| Aiheet: Purjehdus, meri |
| Kunto: 3+ |
| Hinta: 7.50 € |