@misc{indiciae013596abaace, title = {Geochemical map showing the distribution and abundance of tin, tungsten, and molybdenum in the nonmagnetic heavy-mineral concentrate samples in the Big Delta quadrangle, Alaska}, author = {Thomas D. Hessin and E.F. Cooley and D. F. Siems and S.K. McDanal}, year = {1978}, doi = {10.3133/ofr78529g}, url = {https://pubs.usgs.gov/publication/ofr78529G}, note = {Source identifier: ofr78529G} }