@misc{indiciae8f95e1f3cd93, title = {Aeromagnetic map of parts of Clay and Becker Counties, Minnesota}, author = {L. A. Anderson and G. L. Zandle}, year = {1963}, doi = {10.3133/gp326}, url = {https://pubs.usgs.gov/publication/gp326}, note = {Source identifier: gp326} }