Williams, R. S. Satellite image atlas of glaciers of the world. US Geological Survey professional paper 1386.
استشهاد بنمط شيكاغوWilliams, Richard S. "Satellite Image Atlas of Glaciers of the World." US Geological Survey Professional Paper 1386 .
MLA استشهادWilliams, Richard S. "Satellite Image Atlas of Glaciers of the World." US Geological Survey Professional Paper 1386 .
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