Snäll, S. (1977). Silurian and Ordovician bentonites of Gotland (Sweden). Almquist & Wiksell.
Chicago Style (17th ed.) CitationSnäll, Sven. Silurian and Ordovician Bentonites of Gotland (Sweden). Stockholm: Almquist & Wiksell, 1977.
MLA (9th ed.) CitationSnäll, Sven. Silurian and Ordovician Bentonites of Gotland (Sweden). Almquist & Wiksell, 1977.
Warning: These citations may not always be 100% accurate.