Columbia subject headings:
Guamúchil (Salvador Alvarado, Mexico)--Economic conditions--20th century.
Guamúchil (Salvador Alvarado, Mexico)--History--20th century.
Guamúchil (Salvador Alvarado, Mexico)--Social conditions--20th century.
Urbanization--Mexico--Guamúchil (Salvador Alvarado)
Urbanization--Mexico--Évora Region.
Évora Region (Mexico)--Economic conditions--20th century.
Évora Region (Mexico)--History--20th century.
Évora Region (Mexico)--Social conditions--20th century.
Harvard subject headings:
Princeton subject headings:
Guamúchil (Salvador Alvarado, Mexico)--History--20th century.