TY - RPRT TI - Mineral resources of the Jacumba (In-ko-pah) Wilderness Study Area, Imperial County, California AU - Victoria R. Todd AU - J.E. Kilburn AU - D.E. Detra AU - Andrew Griscom AU - F.A. Kruse AU - E.L. McHugh PY - 1987 DO - 10.3133/b1711d UR - https://pubs.usgs.gov/publication/b1711D ID - b1711D ER -