Columbia subject headings:
Authors, Mexican--20th century--Biography.
Biography--Authorship.
Guzmán, Martín Luis, 1887-1976.
Historians--Mexico--Biography.
Harvard subject headings:
Authors, Mexican--20th century--Biography
Biography--Authorship.
Guzmán, Martín Luis, 1887-1976.
Historians--Mexico--Biography
Princeton subject headings:
Authors, Mexican--20th century--Biography.
Biography--Authorship.
Guzmán, Martín Luis, 1887-1976.
Historians--Mexico--Biography.