Columbia subject headings:
Church architecture--United States.
Unity Temple (Oak Park, Ill.)
Wright, Frank Lloyd, 1867-1959.
Harvard subject headings:
Architecture--United States--History--20th century
Oak Park (Ill.)--Buildings, structures, etc.
Unity Temple (Oak Park, Ill.)
Wright, Frank Lloyd, 1867-1959--Criticism and interpretation.
Princeton subject headings:
Unity Temple (Oak Park, Ill.)
Wright, Frank Lloyd, 1867-1959.