Columbia subject headings:
Epidemics--Mexico--Puebla de Zaragoza--History--18th century.
Mortality--Mexico--Puebla de Zaragoza--18th century.
Puebla de Zaragoza (Mexico)--Social conditions--18th century.
Harvard subject headings:
Epidemics--Mexico--Puebla--History--18th century.
Mortality--Mexico--Puebla--18th century.
Puebla de Zaragoza (Mexico)--Social conditions--18th century.
Princeton subject headings:
Epidemics--Mexico--Puebla--History--18th century.
Mortality--Mexico--Puebla--18th century.
Puebla de Zaragoza (Mexico)--Social conditions--18th century.