APA aipamena

Robert K. Carr, M. H. B. Essentials of American democracy. Holf, Rinehart and Winston Inc.

Chicago Style aipamena

Robert K. Carr, Marver H. Bernstein. Essentials of American Democracy. Holf, Rinehart and Winston Inc.

MLA aipamena

Robert K. Carr, Marver H. Bernstein. Essentials of American Democracy. Holf, Rinehart and Winston Inc.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.