Columbia subject headings:
Cullen, Greg--Criticism and interpretation.
Edwards, Dic, 1948---Criticism and interpretation.
English drama--Welsh authors--History and criticism.
Theater--Wales--History--20th century.
Thomas, Edward, 1961---Criticism and interpretation.
Wales--In literature.
Wales--Intellectual life--20th century.
Way, Charles, 1955---Criticism and interpretation.
Harvard subject headings:
Cullen, Greg--Criticism and interpretation.
Edwards, Dic, 1948---Criticism and interpretation.
English drama--Welsh authors--History and criticism.
Theater--Wales--History--20th century.
Thomas, Edward, 1961---Criticism and interpretation.
Wales--In literature.
Wales--Intellectual life--20th century.
Way, Charles, 1955---Criticism and interpretation.
Princeton subject headings:
Cullen, Greg.
Dramatists, Welsh--20th century.
Edwards, Dic, 1948-
Thomas, Edward, 1961-
Wales--Drama.
Way, Charles, 1955-