Columbia subject headings:
Oil industry workers--Texas--Interviews.
Petroleum industry and trade--Texas--History--20th century.
Texas--Social life and customs.
Harvard subject headings:
Oil industry workers--Texas--Interviews.
Petroleum industry and trade--Texas--History--20th century.
Texas--Social life and customs
Princeton subject headings:
Oil industry workers--Texas--Interviews.
Petroleum industry and trade--Texas--History--20th century.
Texas--Social life and customs.