Frailey L.E & Mamchak Susan. (1993). Hanbook of Business Letters (3rd Edition.). Super Book House.
Chicagoスタイル(17版)引用形式Frailey L.E , Mamchak Susan. Hanbook of Business Letters. 3rd Edition. Bombay: Super Book House, 1993.
MLA(9版)引用形式Frailey L.E , Mamchak Susan. Hanbook of Business Letters. 3rd Edition. Super Book House, 1993.
警告: この引用は必ずしも正確ではありません.