Columbia subject headings:
America--Defenses.
Latin America--Economic conditions--1918-
Latin America--Relations--United States.
Propaganda, German.
United States--Relations--Latin America.
Harvard subject headings:
America--Defenses.
Latin America--Economic conditions--1918-
Latin America--Relations--United States.
Propaganda, German.
United States--Relations--Latin America.
Princeton subject headings:
America--Defenses.
Latin America--Economic conditions--1918-
Latin America--Relations--United States.
Propaganda, German.
United States--Relations (general) with Spanish America.