1. The 100 most difficult business letters you'll ever have to write, fax, or e-mail : clear guidance on how to write your way out of the toughest business problems you will ever face / Bernard Heller. (1994) Title Locations:    Mid-South Comm Coll.   Nonfiction   HF5726.H39 1994   Available Mid-South Comm Coll.   Nonfiction   HF5726.H39 1994   Available