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.
This manual is published for the information and guidance of all concerned. The following books, pamphlets, and paper have
been freely used:
British army publications
drill regulations, 6" Newton,
notes on aerial photography,
artillery notes no.6,...