Ehrhardt, V. P. (2011). Anthem critical thinking and writing skills: An introductory guide. Anthem Press.
芝加哥风格引文Ehrhardt, Victoria Pontzer. Anthem Critical Thinking and Writing Skills: An Introductory Guide. London ; New York: Anthem Press, 2011.
MLA引文Ehrhardt, Victoria Pontzer. Anthem Critical Thinking and Writing Skills: An Introductory Guide. Anthem Press, 2011.
警告：这些引文格式不一定是100％准确.