Stone, D. A. (1997). Policy paradox: The art of political decision making. W.W. Norton.
Chicago Style aipamenaStone, Deborah A. Policy Paradox: The Art of Political Decision Making. New York: W.W. Norton, 1997.
MLA aipamenaStone, Deborah A. Policy Paradox: The Art of Political Decision Making. W.W. Norton, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.