Elfenbein, J. (1972). Business letters and communications (1a. ed.). Alexander Hamilton Institute.
Chicagoスタイル(17版)引用形式Elfenbein, Julien. Business Letters and Communications. 1a. ed. Nueva York: Alexander Hamilton Institute, 1972.
MLA(9版)引用形式Elfenbein, Julien. Business Letters and Communications. 1a. ed. Alexander Hamilton Institute, 1972.
警告: この引用は必ずしも正確ではありません.