APA Style
      DEER, T, R. et al (2015).
    Treatment of Chronic Pain by Medical Approaches the AMERICAN ACADEMY of PAIN MEDICINE Textbook on Patient Management .
    :
  .
  
MLA Style
      DEER, Timothy, R.. et al.
    "Treatment of Chronic Pain by Medical Approaches the AMERICAN ACADEMY of PAIN MEDICINE Textbook on Patient Management".
    
    :
  ,
  2015.
  Text.