Columbia subject headings:
Czechoslovakia--Population policy.
Europe, Eastern--Population policy.
Soviet Union--Population policy.
Harvard subject headings:
Birth control--Czechoslovakia.
Czechoslovakia--Population policy.
Socialism and society.
Youth--Czechoslovakia--Sexual behavior.
Princeton subject headings:
Birth control--Czechoslovakia.
Czechoslovakia--Population policy.
Socialism and society.
Youth--Czechoslovakia--Sexual behavior.