Map projections--a working manual / by John P. Snyder. Snyder, John P. (John Parr), Geological Survey (U.S.) Map projection Handbooks, manuals, etc. GA110 .S577 1987 GA110 .S577 1987 526.8 20 SNM One map on folded leaf in pocket. Includes index. Bibliography: p. 259-261. Washington : U.S. G.P.O. : For sale by the Supt. of Docs., c1987. c1987. 1987 Text ix, 383 p. : eng U.S. Geological Survey professional paper ;