8 1 50 Paul Krugman Primary Author Robin Wells Additional Author mixed material 0716752298 USA Worth Publisher 2005 Paul Krugman Primary Author Robin Wells Primary Author mixed material 0716757559 USA Worth Publisher 2005 principles and practice, 6th ed Moriarty, Sandra Primary Author John Burnett Primary Author WELLS, William Primary Author mixed material 9780131202061 Upper Saddle River, New Jersey Prentice Hall 2003 Peters Primary Author Wells Primary Author Johnson Primary Author Jones Primary Author mixed material 9780697114136 Boston MacGraw Hill 1993 WELLS, Dolores Primary Author mixed material 9780619182953 USA Thomson Learning 2004 Nicholas Wells Primary Author mixed material 9780619216160 USA Course Technology 2005 graver Primary Author Beams Primary Author Bienvenu Primary Author Mishkin Primary Author Nickerson Primary Author Robbins Primary Author rugman Primary Author salvage Primary Author schiffman Primary Author Schneider Primary Author todaro Primary Author Vallen Primary Author Wells Primary Author yukl Primary Author mixed material Pearson Principles and Practice Moriarty, Sandra Primary Author WELLS, William Primary Author Mitchell, Nancy Primary Author mixed material 9781292017396 USA Pearson 2015