Columbia subject headings:
Authors, German--20th century--Biography.
Frey, Alexander M. (Alexander Moritz), 1881-1957--Criticism and interpretation.
Harvard subject headings:
Authors, German--20th century--Biography
Frey, Alexander M. (Alexander Moritz), 1881-1957--Criticism and interpretation.
Hitler, Adolf, 1889-1945
Princeton subject headings:
Authors, Exiled--Switzerland--Biography.
Authors, German--20th century--Biography.
Frey, Alexander M. (Alexander Moritz), 1881-1957.