Cita APA (7th ed.)

Michels, R. (1959). Political parties: A sociological study of the oligarchical tendencies of modern democracy. Dover Publications.

Cita Chicago (17th ed.)

Michels, Robert. Political Parties: A Sociological Study of the Oligarchical Tendencies of Modern Democracy. Nueva York: Dover Publications, 1959.

Cita MLA (9th ed.)

Michels, Robert. Political Parties: A Sociological Study of the Oligarchical Tendencies of Modern Democracy. Dover Publications, 1959.