The Silurian Cancaniri (Zapla) Formation of Bolivia, Argentina and Peru. (In: Earth's Pre-Pleistocene Glacial Record. Pre-Pleistocene Tillites. M.J.Hambrey and W.B.Harland, editors)
Reference:
Crowell,J.C. et al. (1981)
The Silurian Cancaniri (Zapla) Formation of Bolivia, Argentina and Peru. (In: Earth's Pre-Pleistocene Glacial Record. Pre-Pleistocene Tillites. M.J.Hambrey and W.B.Harland, editors) Earth's Pre-Pleistocene Glacial Record. IGCP Project #38. Pre-Pleistocene Tillites, (M.J.Hambrey and W.B.Harland, editors), Cambridge University Press
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