Geffner, A. B. (1991). Business letters the easy way. New York: Barron’s.
シカゴスタイル引用形Geffner, Andrea B. Business Letters the Easy Way. New York: Barron’s, 1991.
MLA引用形式Geffner, Andrea B. Business Letters the Easy Way. New York: Barron’s, 1991.
警告: この引用は必ずしも正確ではありません.