Blackburne, Harold S. Tables for Azimuths, Great-Circle Sailing, and Reduction to the Meridian, With a New and Improved "Sumner" Method: Latitudes 900 N. to 900 S., ... With Numerous Examples of Double Altitudes
![Blackburne, Harold S. Tables for Azimuths, Great-Circle Sailing, and Reduction to the Meridian, With a New and Improved "Sumner" Method: Latitudes 900 N. to 900 S., ... With Numerous Examples of Double Altitudes](https://r.kelkoo.com/resize.php?country=se&merchantId=100565793&categoryId=5101&trackingId=96964074&width=300&height=300&image=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F41Pw6mi6ufL._SL500_.jpg&sign=HjSk1zCCgNCYBSHEat21orjhrCgStUhQifdXRW3eCPE-)
Tables for Azimuths, Great-Circle Sailing, and Reduction to the Meridian, With a New and Improved "Sumner" Method: Latitudes 900 N. to 900 S., ... With Numerous Examples of Double Altitudes