Columbia subject headings:
Southwest, New--Economic conditions.
United States. Army--Procurement--Economic aspects--Southwest, New--History.
Harvard subject headings:
Southwest, New--Economic conditions--19th century.
Southwest, New--Economic conditions--History.
United States. Army--Procurement--Economic aspects--Southwest, New--History.
United States. Army--Procurement.
Princeton subject headings:
Southwest, New--Economic conditions--History.
United States. Army--Procurement--Economic aspects--Southwest, New--History.