Dyfyniad APA

O'Brien, J. A. (1945). Stop! Are you a good citizen?: A challenge to every American. Queen's Work.

Dyfyniad Arddull Chicago

O'Brien, John A. Stop! Are You a Good Citizen?: A Challenge to Every American. St. Louis, Mo.: Queen's Work, 1945.

Dyfyniad MLA

O'Brien, John A. Stop! Are You a Good Citizen?: A Challenge to Every American. Queen's Work, 1945.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.