Columbia subject headings:
Authors, Spanish--20th century--Biography.
Ayala, Francisco, 1906-2009.
Harvard subject headings:
Authors, Spanish--20th century--Biography
Ayala, Francisco, 1906---Biography.
Ayala, Francisco, 1906-2009
Princeton subject headings:
Authors, Spanish--20th century--Biography.
Ayala, Francisco, 1906-2009--Biography.