NM Bureau of Mines & Mfrey50s.
Lower & Middle Pennsylvanian strata in the Orogran - NM 1989
Geology--NM
Geology, Stratigraphic--Pensylvanian
Bulletin 124
Lower & Middle Pennsylvanian strata in the Orogran - NM 1989
Geology--NM
Geology, Stratigraphic--Pensylvanian
Bulletin 124