By David Horowitz
By William Outhwaite (University of Sussex), Larry Ray (University of Kent)
By Ivana Markova (Department of Psychology, University of Stirling; Fellow of the British Academy)
By Ernest Mandel
By Martin Carnoy
By Friedrich Engels, David McLellan
By Grace Blakeley
By David Cotterill
By Volpe, Galvano Della, Fraser, J.
By David McLellan
By Mark Cowling, Lawrence Wilde
By George Schopflin
By Neil Harding
By Eric Holt-Gimenez
By John Weeks
By John Peterson (University of Edinburgh Scotland), Alan Woods