Columbia subject headings:
Martínez Estrada, Ezequiel, 1895-1964--Diaries.
Martínez Estrada, Ezequiel, 1895-1964--Travel--United States.
National characteristics, American.
United States--Description and travel.
Harvard subject headings:
Martínez Estrada, Ezequiel, 1895-1964--Diaries.
Martínez Estrada, Ezequiel, 1895-1964--Journeys--United States.
Martínez Estrada, Ezequiel, 1895-1964--Travel--United States.
National characteristics, American.
United States--Description and travel.
Princeton subject headings:
Martínez Estrada, Ezequiel, 1895-1964--Diaries.
Martínez Estrada, Ezequiel, 1895-1964--Travel--United States.
National characteristics, American.
United States--Description and travel.