Tobler, Waldo R, Notes and Comments on the Composition of Terrestrial and Celestial Maps, 1972. (University of Michigan Press), reprinted (2010) by Esri: [1].
Snyder, John P. (1987). Map Projections - A Working Manual. U.S. Geological Survey Professional Paper 1395. [S.l.]: United States Government Printing Office, Washington, D.C.This paper can be downloaded from USGS pages.Arquivado em 2008-05-16 no Wayback Machine
web.archive.org
Snyder, John P. (1987). Map Projections - A Working Manual. U.S. Geological Survey Professional Paper 1395. [S.l.]: United States Government Printing Office, Washington, D.C.This paper can be downloaded from USGS pages.Arquivado em 2008-05-16 no Wayback Machine
