Tobler, Waldo R, Notes and Comments on the Composition of Terrestrial and Celestial Maps, 1972. (University of Michigan Press), reprinted (2010) by Esri: [1].
Introduction to Johann Heinrich Lambert's Farbenpyramide(PDF) (Translation of "Beschreibung einer mit dem Calauischen Wachse ausgemalten Farbenpyramide" ("Description of a colour pyramid painted with Calau's wax"), 1772, with an introduction by Rolf Kuehni). 2011. Archived from the original(PDF) on 2016-03-04.
Snyder, John P. (1987). Map Projections - A Working Manual. U.S. Geological Survey Professional Paper 1395. United States Government Printing Office, Washington, D.C.This paper can be downloaded from
USGS pages.Archived 2008-05-16 at the Wayback Machine
web.archive.org
Snyder, John P. (1987). Map Projections - A Working Manual. U.S. Geological Survey Professional Paper 1395. United States Government Printing Office, Washington, D.C.This paper can be downloaded from
USGS pages.Archived 2008-05-16 at the Wayback Machine
Introduction to Johann Heinrich Lambert's Farbenpyramide(PDF) (Translation of "Beschreibung einer mit dem Calauischen Wachse ausgemalten Farbenpyramide" ("Description of a colour pyramid painted with Calau's wax"), 1772, with an introduction by Rolf Kuehni). 2011. Archived from the original(PDF) on 2016-03-04.