Columbia subject headings:
Harvard subject headings:
Authors, German--20th century--Diaries
Pietrass, Richard, 1946---Diaries.
Pietrass, Richard, 1946---Travel.
Princeton subject headings:
Authors, German--20th century--Diaries.
Diaries.
Pietrass, Richard, 1946---Diaries.
Pietrass, Richard, 1946---Travel.