Cita APA (7th ed.)

Dahl, R. A. (1956). A preface to democratic theory. The University of Chicago.

Cita Chicago (17th ed.)

Dahl, Robert Alan. A Preface to Democratic Theory. Chicago: The University of Chicago, 1956.

Cita MLA (9th ed.)

Dahl, Robert Alan. A Preface to Democratic Theory. The University of Chicago, 1956.