Cita APA (7a ed.)

Macridis, R. C., & Ward, R. E. (1963). Modern political systems: Europe. Prentice-Hall.

Cita Chicago Style (17a ed.)

Macridis, Roy C., y Robert E. Ward. Modern Political Systems: Europe. Englewood Cliffs, New Jersey: Prentice-Hall, 1963.

Cita MLA (9a ed.)

Macridis, Roy C., y Robert E. Ward. Modern Political Systems: Europe. Prentice-Hall, 1963.