Gaya APA
Walter, O, M., Scott, R, L. (1969).
Thinking and Speaking A Guide to Intelligent Oral Communication .
London:
The Macmillan Company.
Gaya MLA
Walter, Otis, M.., Scott, Robert, L..
"Thinking and Speaking A Guide to Intelligent Oral Communication".
London:
The Macmillan Company,
1969.
Text.