Columbia subject headings:
Forced migration--Mexico--Sonora (State)--History.
Internally displaced persons--Mexico--Sonora (State)--History.
Rural-urban migration--Mexico--Sonora (State)--History.
Harvard subject headings:
Forced migration--Mexico--Sonora (State)
Internal migrants--Mexico--Sonora (State)--Economic conditions.
Internal migrants--Mexico--Sonora (State)--Social conditions.
Plutarco Elías Calles Reservoir (Mexico)
Rural-urban migration--Mexico--Sonora (State)
Princeton subject headings:
Forced migration--Mexico--Sonora (State).
Internal migrants--Mexico--Sonora (State)--Economic conditions.
Internal migrants--Mexico--Sonora (State)--Social conditions.
Plutarco Elías Calles Reservoir (Mexico)
Rural-urban migration--Mexico--Sonora (State).