Roberts, S.B., 1988, Coal quality and distribution in Upper Cretaceous and Tertiary rocks, east-central North Slope, Alaska, in Carter, L.M., ed., USGS research on energy resources, 1988; program and abstracts: U.S. Geological Survey Circular 1025, p. 53-54.
This publication is part of a larger work. Please see C 1025 for more information.