1. Natural occurring gas hydrates in the Mackenzie Delta, Northwest Territories;Bily;Bull. Can. Petrol. Geol.,1974
2. Some results of geothermal investigations of permafrost in northern Alaska;Brewer;Trans. Am. Geophys. Union,1958
3. Freezing-point depression at the base of ice-bearing permafrost on the North Slope of Alaska;Collett,1988
4. Geologic interrelations relative to gas hydrates within the North Slope of Alaska;Collett;U.S. Geological Survey Open-File Report,1988
5. Map showing the depth to the base of the deepest ice-bearing permafrost as determined from well logs, North Slope, Alaska;Collett,1989