http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Geology of the Capitan reef complex of the Guadalupe Mountains
Culberson County, Texas and Eddy County, New Mexico
Issued with map supplements; Geology of Carlsbad Caverns East quadrangle, New Mexico by P. T. Hayes [and] Geology of Carlsbad Caverns West quadrangle, New Mexico-Texas by P. T. Hayes and R. L. Koogle.