The encyclopedia of business letters, fax memos, and e-mail

 Bly, Robert W.;

Franklin Lakes, NJ : : Career Press, , 1998

Writing effective letters, memos, & e-mail

 Bell, Arthur H.;

Hauppauge, NY : : Barron's Educational Series , 2004

The AMA handbook of business writing: the ultimate guide to style, grammar, punctuation, usage, construction, and formatting

 Wilson, Kevin; Wauson, Jennifer;

New York : American Management Association, , 2010