Columbia subject headings:
Architecture--Great Britain--History--20th century.
Smithson, Alison, 1928-1993--Criticism and interpretation.
Smithson, Peter, 1923-2003--Criticism and interpretation.
Harvard subject headings:
Architecture--Great Britain--History--20th century
Smithson, Alison, 1928-1993--Criticism and interpretation.
Smithson, Peter, 1923-2003--Criticism and interpretation.
Princeton subject headings:
Smithson, Alison, 1928-1993.
Smithson, Peter, 1923-2003.