APA (7e ed.) Bronvermelding
Walter M Otis. (1976). Speaking intelligently: Communication for problem solving. Macmillan.
Chicago (17e ed.) Bronvermelding
Walter M Otis. Speaking Intelligently: Communication for Problem Solving. New York: Macmillan, 1976.
MLA (9e ed.) Bronvermelding
Walter M Otis. Speaking Intelligently: Communication for Problem Solving. Macmillan, 1976.
Let op: Deze citaties zijn niet altijd 100% accuraat.