Svantesson, S. (1976). Granulometric and petrographic studies of till in the Cambro-Silurian area of Gotland, Sweden, and studies of the ice recession in northern Gotland. Societas Upsaliensis pro Geologia Quaternaria.
Lua i Stíl Chicago (17ú heag.)Svantesson, Sven-Ingemund. Granulometric and Petrographic Studies of Till in the Cambro-Silurian Area of Gotland, Sweden, and Studies of the Ice Recession in Northern Gotland. Uppsala: Societas Upsaliensis pro Geologia Quaternaria, 1976.
Lua MLA (8ú heag.)Svantesson, Sven-Ingemund. Granulometric and Petrographic Studies of Till in the Cambro-Silurian Area of Gotland, Sweden, and Studies of the Ice Recession in Northern Gotland. Societas Upsaliensis pro Geologia Quaternaria, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.