Understanding Dog Mind:
Bonnie Bergan's Guide to Bringing Out the Best In Your Dog  
Bergin, Bonnie
  
  Dog Language: An Encyclopedia Of Dog Behavior 
Abrantes, Roger

  Cesar's Way
Cesar Millan with Melissa Jo Peltier

   The Dog's Mind: Understanding Your Dog's Behavior
Fogle, Bruce

 The New Encyclopedia of the Dog 
Fogle, Bruce