Cita APA (7a ed.)

Roche, J. P., & Levy, L. W. (1964). Parties and pressure groups. Harcourt, Brace & World.

Cita Chicago Style (17a ed.)

Roche, John Pearson, y Leonard Williams Levy. Parties and Pressure Groups. New York: Harcourt, Brace & World, 1964.

Cita MLA (9a ed.)

Roche, John Pearson, y Leonard Williams Levy. Parties and Pressure Groups. Harcourt, Brace & World, 1964.