By Bell, D. J, Cook, P A, Munro, N
By Porter, Brian, Crossley, Roger J.
By Chain Sales Marketing
By Stewart, Antony
By Abrams, Iwona, Sardar, Ziauddin
By Wilkes, F.M.
By David Kirkby, John Haslam
By Nathanielsz, P.W.
By Buchan, R. B., etc.
By Herman, Ros
By Haslam, Mark, Hall, June, Mark Haslam, June Hall
By Griffiths, Rose
By Vorderman, Carol
By Daniel Smith, Smith, Daniel
By Julius, Edward H.
By Firth, Peter
By Kaner, Peter
By unknown author
By O'Riordan, Timothy
By Graham Lawler MA
By Arthur W. Birley, Jim Batchelor, Barry Haworth
By Forey, Pamela, Fitzsimons, Cecilia
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By Nolt, John, Rohatyn, Dennis A.
By Stanton, Nicky
By Andrew, Moira, Kindberg, Sally
By Fielding, David
By Sheriff, Robert E.
By David Nelson, Nelson, David
By LETTS EDUCATIONAL