Principles of effective speaking;
a text for colleges and universities,
by William Phillips Sandford and Willard Hayes Yeager.

APA Citation

Sandford, W. Phillips., Yeager, W. Hayes. (1928). Principles of effective speaking: a text for colleges and universities. New York: T. Nelson and sons.

MLA Citation

Sandford, William Phillips, 1896-, and Willard Hayes Yeager. Principles of Effective Speaking: a Text for Colleges And Universities. New York: T. Nelson and sons, 1928.

Warning: These citations may not always be complete (especially for serials).