Cita APA (7th ed.)

Macridis, R. C. (1963). Modern political systems. Prentice-Hall.

Cita Chicago (17th ed.)

Macridis, Roy C. Modern Political Systems. Englewood Cliffs, N.J: Prentice-Hall, 1963.

Cita MLA (9th ed.)

Macridis, Roy C. Modern Political Systems. Prentice-Hall, 1963.