Cita APA (7a ed.)

Fossedal, G. A., Berkeley, A. R., & Holbrooke, R. C. (2002). Direct democracy in Switzerland. Transaction.

Cita Chicago Style (17a ed.)

Fossedal, Gregory A., Alfred R. Berkeley, y Richard C. Holbrooke. Direct Democracy in Switzerland. New Brunswick [etc.]: Transaction, 2002.

Cita MLA (9a ed.)

Fossedal, Gregory A., et al. Direct Democracy in Switzerland. Transaction, 2002.