McDonald, N. A. (1955). The study of political parties. Random House.
Lua i Stíl Chicago (17ú heag.)McDonald, Neil A. The Study of Political Parties. New York: Random House, 1955.
Lua MLA (9ú heag.)McDonald, Neil A. The Study of Political Parties. Random House, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.