O'Brien, J. A. (1945). Stop! Are you a good citizen?: A challenge to every American. Queen's Work.
Lua i Stíl Chicago (17ú heag.)O'Brien, John A. Stop! Are You a Good Citizen?: A Challenge to Every American. St. Louis, Mo.: Queen's Work, 1945.
Lua MLA (8ú heag.)O'Brien, John A. Stop! Are You a Good Citizen?: A Challenge to Every American. Queen's Work, 1945.
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