Columbia subject headings:
Dreiser, Theodore, 1871-1945.
Soviet Union--Description and travel.
Harvard subject headings:
Dreiser, Theodore, 1871-1945
Dreiser, Theodore, 1871-1945--Knowledge--Soviet Union.
Soviet Union--Description and travel.
Princeton subject headings:
Dreiser, Theodore, 1871-1945--Knowledge--Soviet Union.
Soviet Union--Description and travel.