Columbia subject headings:
Geologists--Russia (Federation)--Biography.
Vernadskiĭ, V. I. (Vladimir Ivanovich), 1863-1945.
Harvard subject headings:
Geologists--Russia (Federation)--Biography
Vernadskiĭ, V. I. (Vladimir Ivanovich), 1863-1945.
Princeton subject headings:
Geologists--Russia--Biography.
Geologists--Soviet Union--Biography.
Vernadskiĭ, V. I. (Vladimir Ivanovich), 1863-1945.