Columbia subject headings:
Achleitner, Friedrich, 1930-2019--Correspondence.
Architects--Austria--Biography.
Architects--Austria--Correspondence.
Architects--United States--Biography.
Holzbauer, Wilhelm--Correspondence.
Holzbauer, Wilhelm--Friends and associates.
Harvard subject headings:
Achleitner, Friedrich, 1930-2019--Correspondence.
Architects--Austria--Correspondence.
Architects--Austria.
Holzbauer, Wilhelm--Correspondence.
Princeton subject headings:
Achleitner, Friedrich, 1930---Correspondence.
Architects--Austria--Correspondence.
Holzbauer, Wilhelm--Correspondence.