Columbia subject headings:
Harvard subject headings:
Geology, Stratigraphic--Permian
Geology, Stratigraphic--Permian--Guidebooks.
Geology--New Mexico--Guidebooks.
Roswell Geological Society. Guidebook of the field conference--1983.
Princeton subject headings:
Geology, Stratigraphic--Permian--Guidebooks.
Geology--New Mexico--Guidebooks.