Columbia subject headings:
Civil engineering--Latin America--History.
Civil engineering--Spain--Colonies--History.
Civil engineering--Spain--Colonies.
Engineering--Latin America--History.
Engineering--Spain--Colonies--History.
Public works--Latin America--History.
Public works--Spain--Colonies.
Harvard subject headings:
America--History--1810-
America--History--To 1810.
Engineering--America--History.
Technical assistance, Spanish--America--History.
Princeton subject headings:
Civil engineering--New Spain--History.
Civil engineering--Spain--Colonies--History.
Engineering--New Spain--History.
Engineering--Spain--Colonies--History.