APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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