Hess, H. H. (1. 11. 1962). „History of Ocean Basins”(PDF). Ур.: A. E. J. Engel; Harold L. James; B. F. Leonard. Petrologic studies: a volume in honor of A. F. Buddington. Boulder, CO: Geological Society of America. стр. 599—620.CS1 одржавање: Формат датума (веза)
nasa.gov
landsat.gsfc.nasa.gov
Rocchio, Laura. "The Landsat Program." National Aeronautics and Space
Administration. http://landsat.gsfc.nasa.gov , accessed 4 December 2006