Columbia subject headings:
Cullen, Gordon, 1914-1994--Criticism and interpretation.
Cullen, Gordon, 1914-1994--Influence.
Cullen, Gordon, 1914-1994. Townscape.
Harvard subject headings:
Cullen, Gordon, 1914-1994--Criticism and interpretation.
Cullen, Gordon, 1914-1994--Influence.
Cullen, Gordon, 1914-1994. Townscape.
Princeton subject headings: