Geffner, Andrea B. How to write better business letters / Andrea B. Geffner. - 5th ed. - Hauppauge, N.Y. : Barron's, c2013. - vii, 194 p. : ill. ; 28 cm. Includes index. ISBN: 9781438001371 (pbk.) Subjects--Topical Terms: Commercial correspondence. LC Class. No.: HF5721 / .H43 2013