Columbia subject headings:
Illustration of books--Austria--20th century.
Illustration of books--Germany (West)--20th century.
Illustration of books--Switzerland--20th century.
Harvard subject headings:
Illustration of books--20th century--Austria.
Illustration of books--20th century--Germany (West)
Illustration of books--20th century--Switzerland.
Princeton subject headings:
Illustration of books--Austria.
Illustration of books--Germany, West.
Illustration of books--Switzerland.