APA Style
      Stephen Johnson, Harvey Siegel. (2010).
    Teaching Thinking Skills (Kedua).
    London:
  Continuum International Publishing Group.
  
Chicago Style
      Stephen Johnson, Harvey Siegel.
    Teaching Thinking Skills.
    Kedua
    London:
  Continuum International Publishing Group,
  2010.
  Text.
  
MLA Style
      Stephen Johnson, Harvey Siegel.
    Teaching Thinking Skills.
    Kedua
    London:
  Continuum International Publishing Group,
  2010.
  Text.
  
Turabian Style
      Stephen Johnson, Harvey Siegel.
    Teaching Thinking Skills.
    Kedua 
    London:
  Continuum International Publishing Group,
  2010.
  Print.