Greenberg, E. S., & Mayer, T. F. (1990). Changes in the state: Causes and consequences. Sage Publications.
Lua i Stíl Chicago (17ú heag.)Greenberg, Edward S., agus Thomas F. Mayer. Changes in the State: Causes and Consequences. Newbury Park, Calif.: Sage Publications, 1990.
Lua MLA (8ú heag.)Greenberg, Edward S., agus Thomas F. Mayer. Changes in the State: Causes and Consequences. Sage Publications, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.