Sproule, J. M. (1997). Speechmaking: Rhetorical competence in a postmodern world (2nd ed.). Brown & Benchmark Publishers.
芝加哥风格引文Sproule, J. Michael. Speechmaking: Rhetorical Competence in a Postmodern World. 2nd ed. Madison, WI: Brown & Benchmark Publishers, 1997.
MLA引文Sproule, J. Michael. Speechmaking: Rhetorical Competence in a Postmodern World. 2nd ed. Brown & Benchmark Publishers, 1997.
警告：这些引文格式不一定是100％准确.