Columbia subject headings:
Harvard subject headings:
Alas, Leopoldo, 1852-1901
Alas, Leopoldo, 1852-1901--Correspondence.
Authors, Spanish--19th century--Correspondence
Princeton subject headings:
Alas, Leopoldo, 1852-1901--Correspondence.
Alas, Leopoldo, 1852-1901--Editors.
Authors, Spanish--19th century--Correspondence.