TY - RPRT TI - Aeromagnetic survey of part of Dickinson County, Michigan, with preliminary geologic interpretation AU - K. L. Wier AU - J. R. Balsley AU - Walden P. Pratt PY - 1952 DO - 10.3133/gp115 UR - https://pubs.usgs.gov/publication/gp115 ID - gp115 ER -