Verba, S., & Nie, N. H. (1972). Participation in America: Political democracy and social equality. Harper & Row.
Cita Chicago Style (17a ed.)Verba, Sidney, y Norman H. Nie. Participation in America: Political Democracy and Social Equality. New York: Harper & Row, 1972.
Cita MLA (8a ed.)Verba, Sidney, y Norman H. Nie. Participation in America: Political Democracy and Social Equality. Harper & Row, 1972.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.