Cita APA (7th ed.)

Butler, D., & Ranney, A. (1994). Referendums around the world: The growing use of direct democracy. Macmillan.

Cita Chicago (17th ed.)

Butler, David, i Austin Ranney. Referendums Around the World: The Growing Use of Direct Democracy. London: Macmillan, 1994.

Cita MLA (9th ed.)

Butler, David, i Austin Ranney. Referendums Around the World: The Growing Use of Direct Democracy. Macmillan, 1994.