@misc{indiciae664530bd4270, title = {Depositional environments of coal-bearing and associated formations of Cretaceous age in the National Petroleum Reserve in Alaska}, author = {Henry W. Roehler}, year = {1987}, doi = {10.3133/b1575}, url = {https://pubs.usgs.gov/publication/b1575}, note = {Source identifier: b1575} }