@misc{indiciae9048c2fcade1, title = {Potassium-argon age determinations from the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula}, author = {Gregory D. DuBois and Frederic H. Wilson and Nora B. Shew}, year = {1987}, doi = {10.3133/ofr87191}, url = {https://pubs.usgs.gov/publication/ofr87191}, note = {Source identifier: ofr87191} }