Gilbert, A. (1999). Must global politics constrain democracy?: Great-power realism, democratic peace, and democratic internationalism. Princeton University Press.
Chicago Style (17th ed.) ZitazioaGilbert, Alan. Must Global Politics Constrain Democracy?: Great-power Realism, Democratic Peace, and Democratic Internationalism. Princeton, N.J.: Princeton University Press, 1999.
MLA (9th ed.) ZitazioaGilbert, Alan. Must Global Politics Constrain Democracy?: Great-power Realism, Democratic Peace, and Democratic Internationalism. Princeton University Press, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.