P. E. H Barratt Bases of Psychological Methods - Adelide John Wiley & Sons 1971 - 178p P. E. H Barratt: Bases of Psychological Methods. Adelide. John Wiley & Sons, 1971. 0-471-05406-2--(150BAR) ENGLISH ISBN: 0-471-05406-2 Dewey Class. No.: 150 / BAR