Columbia subject headings:
Authors, German--20th century--Biography--Exhibitions.
Regler, Gustav, 1898-1963--Exhibitions.
Harvard subject headings:
Authors, German--20th century--Biography--Exhibitions.
Regler, Gustav, 1898-1963--Exhibitions.
Princeton subject headings:
Authors, German--20th century--Exhibitions.
Regler, Gustav, 1898-1963--Exhibitions.
Regler, Gustav, 1898-1963--Homes and haunts--Germany (West)--Saarland.
Regler, Gustav, 1898-1963--Travel--Europe.
Regler, Gustav, 1898-1963--Travel--Mexico.