Columbia subject headings:
Dezhnev, Semen, active 1638-1671.
Siberia (Russia)--Description and travel.
Harvard subject headings:
Dezhnev, Semen Ivanovich, -1673
Siberia (Russia)--Discovery and exploration.
Princeton subject headings:
Dezhnev, Semen Ivanovich, -1673.
Siberia (Russia)--Discovery and exploration.