Columbia subject headings:
Efimov, A. V. (Alekseĭ Vladimirovich), 1896-1971.
Ethnology--Latin America.
Ethnology--United States.
Latin America--History.
United States--History.
Harvard subject headings:
Efimov, A. V. (Alekseĭ Vladimirovich), 1896-1971
Ethnology--Latin America
Ethnology--United States
Latin America--History.
United States--History.
Princeton subject headings:
Efimov, Alekseĭ Vladimirovich, 1896-
Ethnology--Latin America.
Ethnology--United States.
Latin America--History.
United States--History.