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by Andrea B. Geffner - 1998 - Business & Economics - 320 pagesby Mary Ellen Guffey - Business writing - 585 pagesby Andrea B. Geffner - 2000 - Business & Economics - 160 pagesby Robert W. Bly - 2006 - Business & Economics - 410 pagesby Drayton Bird - 2003 - Business & Economics - 309 pagesby Robert W. Bly - 2006 - Reference - 416 pagesby Raleigh Pinskey - 1999 - Business & Economics - 416 pages. .