Gerston, L. N., & Ehrlich, T. (2008). Public policymaking in a democratic society: A guide to civic engagement (2nd ed.). M.E. Sharpe.
Lua i Stíl Chicago (17ú heag.)Gerston, Larry N., agus Thomas Ehrlich. Public Policymaking in a Democratic Society: A Guide to Civic Engagement. 2nd ed. Armonk, N.Y.: M.E. Sharpe, 2008.
Lua MLA (8ú heag.)Gerston, Larry N., agus Thomas Ehrlich. Public Policymaking in a Democratic Society: A Guide to Civic Engagement. 2nd ed. M.E. Sharpe, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.