Elfenbein, J. (1973). Business letters and communication. Alexander hamilton Inc.
Chicagoスタイル(17版)引用形式Elfenbein, Julien. Business Letters and Communication. New York: Alexander hamilton Inc, 1973.
MLA(9版)引用形式Elfenbein, Julien. Business Letters and Communication. Alexander hamilton Inc, 1973.
警告: この引用は必ずしも正確ではありません.