Selby, N., & Bledsoe, P. S. (2003). Essential college English: A grammar, punctuation and writing workbook (6th ed.). Longman.
芝加哥风格引文Selby, Norwood, 与 Pamela S. Bledsoe. Essential College English: A Grammar, Punctuation and Writing Workbook. 6th ed. New York: Longman, 2003.
MLA引文Selby, Norwood, 与 Pamela S. Bledsoe. Essential College English: A Grammar, Punctuation and Writing Workbook. 6th ed. Longman, 2003.
警告：这些引文格式不一定是100％准确.