Gwynn, R. S. (1993). Poetry: A HarperCollins pocket anthology (1a. ed.). Harper Collins College.
芝加哥风格引文Gwynn, R. S. Poetry: A HarperCollins Pocket Anthology. 1a. ed. Nueva York: Harper Collins College, 1993.
MLA引文Gwynn, R. S. Poetry: A HarperCollins Pocket Anthology. 1a. ed. Harper Collins College, 1993.
警告：这些引文格式不一定是100％准确.