1. Glacier variations and climatic variations;Ahlmann;Amer. Geogr. Soc.,1953
2. Recent sediments of the Gulf of Paria, Reports of the Orinoco Shelf Expedition, 1;Andel;Verh. Kon. Ned. Akad. Wet. Amsterdam Afd. Natuurk.,1954
3. Swedish climate in the late-Quaternary period;Andersson,1910
4. Radiocarbon dates;Arnold;Science,1951
5. The Great Basin, with emphasis on Glacial and Postglacial times;Antevs;Bull. Univ. Utah,1948