Columbia subject headings:
Colquhoun, Robert, 1914-1962--Catalogues raisonnés.
Colquhoun, Robert, 1914-1962.
MacBryde, Robert, 1913-1966--Catalogues raisonnés.
MacBryde, Robert, 1913-1966.
Painters--Great Britain--Biography.
Harvard subject headings:
Colquhoun, Robert, 1914-1962.
Gay artists--Scotland--Biography.
MacBryde, Robert, 1913-1966.
Painters--Scotland--Biography.
Princeton subject headings: