Parapsychology : the science of unusual experience - Ron Roberts –; Anthony E. Esgate and David Groome –; Christopher C. French –; Richard Wiseman –; David Groome –; Tony Towell –; Antje Mueller and Ron Roberts –; Stephen Benton –; Caroline Watt –; Chris A. Roe –; Ron Roberts; Roberts, Ron; et al. (Arnold, 2001)