Norton, W. (2002). Explaining Landscape Change: Group Identity and Behavior. The Behavior Analyst Today, 3 (2), 155 -160 BAOArquivado em 9 de março de 2008, no Wayback Machine.
Norton, W. (2001). Initiating an affair human geography and behavior analysis. The Behavior Analyst Today, 2 (4), 283-290 BAOArquivado em 9 de março de 2008, no Wayback Machine..
Norton, W. (2002). Explaining Landscape Change: Group Identity and Behavior. The Behavior Analyst Today, 3 (2), 155 -160 BAOArquivado em 9 de março de 2008, no Wayback Machine.
Norton, W. (2001). Initiating an affair human geography and behavior analysis. The Behavior Analyst Today, 2 (4), 283-290 BAOArquivado em 9 de março de 2008, no Wayback Machine..