Denhardt, J. V., & Denhardt, R. B. (2007). The new public service: Serving, not steering (expanded ed.). M.E. Sharpe.
Lua i Stíl Chicago (17ú heag.)Denhardt, Janet V., agus Robert B. Denhardt. The New Public Service: Serving, Not Steering. expanded ed. Armonk, New York: M.E. Sharpe, 2007.
Lua MLA (9ú heag.)Denhardt, Janet V., agus Robert B. Denhardt. The New Public Service: Serving, Not Steering. expanded ed. M.E. Sharpe, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.