Edward Elgar, 31 Wiley, 23 McGraw-Hill, 18 Grolier International, 17 Sage Publications, 12 Oxford, 12 IGI Global, 11 Wadsworth, 10 Mc Graw-Hill, 6 Grolier incorporated, 5 South Western, 5 ASCD, 5 Thomson, 5 OCLC Online Computer Library Center, 4 Wiley, Blackwell, 4 John Wiley & Sons, 4 Wiley Blackwell, 4 Polity, 4 Wiley-Blackwell, 3 Pearson, 3