State coordinates and polyconic maps. Some notes on the state plane-coordinate systems and their relation to polyconic quadrangle maps.
State coordinates and polyconic maps. Some notes on the state plane-coordinate systems and their relation to polyconic quadrangle maps.
Prepared by Topographic Division, Research and Technical Control Branch.
- Washington, 1949.
- 7 p. illus. 27 cm.
- Geological Survey circular no. 57 .
Cover title.
gs 49000232
Map projection.
Cartography.
QE75 / .C5 n. 57
Cover title.
gs 49000232
Map projection.
Cartography.
QE75 / .C5 n. 57