Dimond, S. E., & Pflieger, E. F. (1969). Our American government: Teacher's introduction and answer key ([Annotated ed.].). J. B. Lippincott Co..
Lua i Stíl Chicago (17ú heag.)Dimond, Stanley E., agus Elmer F. Pflieger. Our American Government: Teacher's Introduction and Answer Key. [Annotated ed.]. Philadelphia: J. B. Lippincott Co., 1969.
Lua MLA (8ú heag.)Dimond, Stanley E., agus Elmer F. Pflieger. Our American Government: Teacher's Introduction and Answer Key. [Annotated ed.]. J. B. Lippincott Co., 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.