Columbia subject headings:
Mexicans--Travel--Soviet Union--History--20th century.
Mexico--Relations--Soviet Union.
Public opinion--Mexico--History--20th century.
Soviet Union--Description and travel.
Soviet Union--Foreign public opinion, Mexican--History--20th century.
Soviet Union--Relations--Mexico.
Visitors, Foreign--Soviet Union--Attitudes--History--20th century.
Harvard subject headings:
Mexicans--Travel--Soviet Union.
Mexico--Relations--Soviet Union.
Public opinion--Mexico
Soviet Union--Description and travel.
Soviet Union--Foreign public opinion, Mexican.
Soviet Union--Relations--Mexico.
Visitors, Foreign--Soviet Union--Attitudes.
Princeton subject headings:
Mexicans--Travel--Soviet Union--History--20th century.
Mexico--Relations--Soviet Union.
Public opinion--Mexico--History--20th century.
Soviet Union--Description and travel.
Soviet Union--Foreign public opinion, Mexican--History--20th century.
Soviet Union--Relations--Mexico.
Visitors, Foreign--Soviet Union--Attitudes--History--20th century.