TY - RPRT TI - Distribution of Igneous Rocks in Medina and Uvalde Counties, Texas, as Inferred from Aeromagnetic Data AU - David V. Smith AU - Robert R. McDougal AU - Bruce D. Smith AU - Charles D. Blome PY - 2008 DO - 10.3133/sir20075191 UR - https://pubs.usgs.gov/publication/sir20075191 ID - sir20075191 ER -