Columbia subject headings:
Harvard subject headings:
Group identity--Brazil--Bahia (State)
Occupational mobility--Brazil--Bahia (State)
Petroleum chemicals industry--Brazil--Bahia (State)
Petroleum chemicals industry--Brazil--Bahia (State)--Employees.
Social mobility--Brazil--Bahia (State)
Working class--Brazil--Bahia (State)
Princeton subject headings:
Occupational mobility--Brazil--Bahia (State).
Petroleum chemicals industry--Brazil--Bahia (State)--Employees.
Social mobility--Brazil--Bahia (State).