John P. Snyder: ”Lambert Conformal Conic Projection”, Map Projections - A Working Manual, s. 107. Washington D. C.: United States Government Print Office, 1987. Teoksen verkkoversio. (Arkistoitu – Internet Archive)
John P. Snyder: ”Lambert Conformal Conic Projection”, Map Projections - A Working Manual, s. 107. Washington D. C.: United States Government Print Office, 1987. Teoksen verkkoversio. (Arkistoitu – Internet Archive)