APA引文

Sandford, W. P., & Yeager, W. H. (1963). Principles of effective speaking (6th ed.). Ronald Press Co..

Chicago Style (17th ed.) Citation

Sandford, William Phillips, and Willard Hayes Yeager. Principles of Effective Speaking. 6th ed. New York: Ronald Press Co., 1963.

MLA引文

Sandford, William Phillips, and Willard Hayes Yeager. Principles of Effective Speaking. 6th ed. Ronald Press Co., 1963.