Olson, Judy M (1997), "Projecting the hemisphere", Robinson, Arthur H; Snyder, John P (Ed.), Matching the map projection to the need, Bethesda, MD: Cartography and Geographic Information Society, American Congress on Surveying and Mapping, 14 Mart 2016 tarihinde kaynağından arşivlendi, erişim tarihi: 28 Mayıs 2020. - "Western Hemisphere", Merriam-Webster's Geographical Dictionary (3.3 yıl = 2001 bas.), Springfield, Massachusetts: Merriam-Webster, s. 1294.
web.archive.org
Olson, Judy M (1997), "Projecting the hemisphere", Robinson, Arthur H; Snyder, John P (Ed.), Matching the map projection to the need, Bethesda, MD: Cartography and Geographic Information Society, American Congress on Surveying and Mapping, 14 Mart 2016 tarihinde kaynağından arşivlendi, erişim tarihi: 28 Mayıs 2020. - "Western Hemisphere", Merriam-Webster's Geographical Dictionary (3.3 yıl = 2001 bas.), Springfield, Massachusetts: Merriam-Webster, s. 1294.
