Griffin, C. L. (2015). Invitation to public speaking (5e.). Cengage Learning.
芝加哥风格引文Griffin, Cindy L. Invitation to Public Speaking. 5e. Stamford, [Connecticut]: Cengage Learning, 2015.
MLA引文Griffin, Cindy L. Invitation to Public Speaking. 5e. Cengage Learning, 2015.
警告：这些引文格式不一定是100％准确.