Frailey L.E & Mamchak Susan. (1993). Hanbook of Business Letters (3rd Edition.). Super Book House.
Style de citation Chicago (17e éd.)Frailey L.E et Mamchak Susan. Hanbook of Business Letters. 3rd Edition. Bombay: Super Book House, 1993.
Style de citation MLA (9e éd.)Frailey L.E et Mamchak Susan. Hanbook of Business Letters. 3rd Edition. Super Book House, 1993.
Attention : ces citations peuvent ne pas être correctes à 100%.