Columbia subject headings:
Buero Vallejo, Antonio, 1916-2000--Bibliography.
Sastre, Alfonso, 1926---Bibliography.
Harvard subject headings:
Buero Vallejo, Antonio, 1916-2000--Bibliography.
Sastre, Alfonso, 1926---Bibliography.
Princeton subject headings:
Buero Vallejo, Antonio, 1916-2000--Bibliography.
Sastre, Alfonso, 1926---Bibliography.