APA (7e ed.) Bronvermelding

Sheffield, A. D. (1922). Joining in public discussion: A study of effective speechmaking for members of labor unions, conferences, forums and other discussion groups. New York: George H. Doran Company.

Chicago (17e ed.) Bronvermelding

Sheffield, Alfred Dwight. Joining in Public Discussion: A Study of Effective Speechmaking for Members of Labor Unions, Conferences, Forums and Other Discussion Groups. New York: George H. Doran Company, 1922.

MLA (8e ed.) Bronvermelding

Sheffield, Alfred Dwight. Joining in Public Discussion: A Study of Effective Speechmaking for Members of Labor Unions, Conferences, Forums and Other Discussion Groups. New York: George H. Doran Company, 1922.