Divine Word College of Legazpi - Library Search for 'au:"Mary Ellen Guffey"'

Essentials of business communication/

By Guffey, Mary Ellen . Singapore : Cencage Learning, 2004 . xix, 560 pages : 26cm.. 978-981-4352-66-6.

By Mary Ellen Guffey. Thomson South-Western, USA : 2006 . xxix (various paging) : 26 cm.. 0-324-22304-8.

By Guffey, Mary Ellen . Australia : South-Western College Publishing, 2001 . xxi, 499 p. ; , Includes index. 28 cm.. 0-324-01362-0