Columbia subject headings:
Oil fields--Oklahoma--Osage County.
Osage County (Okla.)--Economic conditions.
Osage Indians--Economic conditions.
Osage Indians--History.
Harvard subject headings:
Oil fields--Oklahoma--Osage County.
Oil fields--Oklahoma--Osage Reservation.
Osage County (Okla.)--Economic conditions.
Osage Indians--Economic conditions.
Osage Indians--History.
Osage Reservation (Okla.)--Economic conditions.
Princeton subject headings:
Oil fields--Oklahoma--Osage County.
Osage County (Okla.)--Economic conditions.
Osage Indians--Economic conditions.
Osage Indians--History.