APA (7th ed.) Zitazioa
Biggs, S., & Helms, L. B. (2007). The practice of American public policymaking. M.E. Sharpe.
Chicago Style (17th ed.) Zitazioa
Biggs, Selden, eta Lelia B. Helms. The Practice of American Public Policymaking. Armonk, N.Y.: M.E. Sharpe, 2007.
MLA (9th ed.) Zitazioa
Biggs, Selden, eta Lelia B. Helms. The Practice of American Public Policymaking. M.E. Sharpe, 2007.
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