Columbia subject headings:
Political participation--Sweden.
Political participation--United States.
Political psychology.
Voting--Sweden.
Voting--United States.
Harvard subject headings:
Political participation--Sweden
Political participation--United States
Political psychology.
Voting--Sweden.
Voting--United States
Princeton subject headings:
Political participation--Sweden.
Political participation--United States.
Political psychology.
Voting--Sweden.
Voting--United States.