United States Antiaircraft Artillery School (Camp Davis, N.C.)
"The purpose of this publication is to outline methods of land navigation and artillery orientation that will be applicable in any hemisphere, that will permit the determination of direction with more precision than may be expected by means of a...
United States Works Progress Administration (New York, N.Y.)
Tables of grid coordinates ... computed ... by the Project for the computation of mathematical tables ... The basic formulas upon which the tables have been developed are from Special publication no. 59, U.S. Coast & Geodetic Survey.--Pref.