Baugh, L. S. (1994). How to write first-class letters: The handbook for practical letter writing. NTC Pub. Group.
芝加哥风格引文Baugh, L. Sue. How to Write First-class Letters: The Handbook for Practical Letter Writing. Lincolnwood, IL: NTC Pub. Group, 1994.
MLA引文Baugh, L. Sue. How to Write First-class Letters: The Handbook for Practical Letter Writing. NTC Pub. Group, 1994.
警告：这些引文格式不一定是100％准确.