TY  - RPRT
TI  - Preliminary interpretation of an aeromagnetic survey in north-central Iowa
AU  - John Richard Henderson
AU  - Walter S. White
AU  - Isidore Zietz
PY  - 1963
DO  - 10.3133/ofr6345
UR  - https://pubs.usgs.gov/publication/ofr6345
ID  - ofr6345
ER  -