Columbia subject headings:
Spanish literature--20th century--History and criticism.
Spanish literature--Spain--Valladolid--History and criticism.
Harvard subject headings:
Spanish literature--20th century--History and criticism
Spanish literature--Spain--Valladolid--Bio-bibliography.
Spanish literature--Spain--Valladolid--History and criticism.
Princeton subject headings:
Spanish literature--20th century--History and criticism.
Spanish literature--Spain--Valladolid--Bio-bibliography.
Spanish literature--Spain--Valladolid--History and criticism.