Ross, R. S. (1996). American national government: Institutions, policy, and participation (4th ed.). Brown & Benchmark.
Lua i Stíl Chicago (17ú heag.)Ross, Robert S. American National Government: Institutions, Policy, and Participation. 4th ed. Madison, WI: Brown & Benchmark, 1996.
Lua MLA (9ú heag.)Ross, Robert S. American National Government: Institutions, Policy, and Participation. 4th ed. Brown & Benchmark, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.