http://www.galleryofmapprojections.com/Reference/Bull1856.pdfBibliography of Map Projectionshttp://www.galleryofmapprojections.com/Reference/Bull1856.pdfJohn P. Snyder and Harry Steward1st edition:U.S. Geological Survey Bulletin 1856, 19882nd edition:U.S. Geological Survey Bulletin 1856, 1997Also two on-line editions installed at Ohio State University, 1994, 1996under supervision of Eric John Miller and Duane F. Marbleapplication/pdfBibliographyImageeng