APA
Sandford W. P., Yeager W. H., . (1963). Principles of effective speaking. New York: Ronald Press Company.
Chicago
Sandford William Phillips, Yeager Willard Hayes, . 1963. Principles of effective speaking. New York: Ronald Press Company.
Harvard
Sandford W. P., Yeager W. H., . (1963). Principles of effective speaking. New York: Ronald Press Company.
MLA
Sandford William Phillips, Yeager Willard Hayes, . Principles of effective speaking. New York: Ronald Press Company. 1963.
