http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Lower and middle Pennsylvanian measured sections Type Derryan Region, southern New Mexico and westernmost Texas
Derryan Region, southern New Mexico and westernmost Texas
"Comprises sections measured for ... [the author's] doctoral dissertation entitled 'Middle Pennsylvanian fusulinid biostratigraphy of the Type Derryan Area in southern New Mexico and and westernmost Texas'."
Open-file report (New Mexico. Bureau of Mines and Mineral Resources) ; no. 373