Google Books] 
 * Depersonalization Disorder Frederic P Miller, Agnes F Vandome, John McBrewster Google Books 
 * Depersonalization disorder:a review of the literature Alison S. Nelson Google Books 
 * Depersonalization: A New Look at a Neglected Syndrome Mauricio Sierra [http://books.google.com/books?id=qOat1nDGZAkC&dq;=%22depersonalization%20disorder%22&source;=gbs_similarbooks