Murphy, B.T.

The Accuracy of Geographical Coordinates Calculated from Bearing and Distance by: Murphy, B.T. (Language materials, printed)

The Accuracy of Geographical Coordinates Calculated from Simplified Puissant's Formulae by: Murphy, B.T. (Language materials, printed)

The Accuracy of Grid Coordinates and Reverse Grid Bearings Calculated on Transverse Mercator Projecting from Grid Bearing and Spheroidal Distance by: Murphy, B.T. (Language materials, printed)