Columbia subject headings:
Aalbers, A. F. (Albert Frederik), 1897-1961.
Architects--Netherlands.
Architecture--Netherlands--History--20th century.
Harvard subject headings:
Aalbers, A. F., 1897-1961.
Architects--Netherlands.
Architecture--Netherlands--20th century.
Princeton subject headings:
Aalbers, A. F. (Albert Frederik), 1897-1961.
Architects--Netherlands.
Architecture--Netherlands--History--20th century.