Columbia subject headings:
Harvard subject headings:
Aeronautical engineers--Russia--Biography.
Aeronautical engineers--Soviet Union--Biography
Astronautics--Russia.
Astronautics--Soviet Union
Rocketry--Russia.
Rocketry--Soviet Union.
T︠S︡iolkovskiĭ, K. (Konstantin), 1857-1935.
Princeton subject headings:
Aerospace engineers--Russia--Biography.
Aerospace engineers--Soviet Union--Biography.
Astronautics--Russia.
Astronautics--Soviet Union.
T︠S︡iolkovskiĭ, K. (Konstantin), 1857-1935.