@misc{indiciae3b9568587624, title = {Subsurface exploration in the Little Susitna district, Matanuska coal field, Alaska}, author = {Farrell F. Barnes and Daniel Sokol}, year = {1954}, doi = {10.3133/ofr557}, url = {https://pubs.usgs.gov/publication/ofr557}, note = {Source identifier: ofr557} }