@misc{indiciaee56f3434c171, title = {Precise age of C33N-C32R magnetic-polarity reversal, San Juan Basin, New Mexico and Colorado}, author = {James E. Fassett and Maureen B. Steiner}, year = {1997}, url = {https://pubs.usgs.gov/publication/70069187}, note = {Source identifier: 70069187} }