Dugger, J. (2003). Business letters for busy people (3rd ed.). Jaico.
シカゴスタイル引用形Dugger, Jim. Business Letters for Busy People. 3rd ed. Mumbai: Jaico, 2003.
MLA引用形式Dugger, Jim. Business Letters for Busy People. 3rd ed. Jaico, 2003.
警告: この引用は必ずしも正確ではありません.