Cita APA (7th ed.)

Easton, D. (1965). A systems analysis of political life. John Wiley.

Cita Chicago (17th ed.)

Easton, David. A Systems Analysis of Political Life. Nueva York: John Wiley, 1965.

Cita MLA (9th ed.)

Easton, David. A Systems Analysis of Political Life. John Wiley, 1965.