Columbia subject headings:
Plant geneticists--Soviet Union--Biography.
Plant genetics--Soviet Union--History.
Political purges--Soviet Union--History.
Science and state--Soviet Union--History.
Vavilov, N. I. (Nikolaĭ Ivanovich), 1887-1943.
Harvard subject headings:
Plant genetics--Soviet Union--History.
Political purges--Soviet Union--History.
Science and state--Soviet Union--History.
Vavilov, N. I. (Nikolaĭ Ivanovich), 1887-1943.
Princeton subject headings:
Communism and science--Soviet Union--History.
Lysenko, Trofim, 1898-1976.
Plant geneticists--Soviet Union--Biography.
Plant genetics--Soviet Union--History.
Political purges--Soviet Union--History.
Vavilov, N. I. (Nikolaĭ Ivanovich), 1887-1943.