APA Style
      Knutson, Ronald D., Penn, JB L., Flinchbaugh, Barry L.. (2007).
    Agricultural and Food Policy, Sixth Edition (6th).
    New Jersey:
  Prentice Hall.
  
Chicago Style
      Knutson, Ronald D., Penn, JB L., Flinchbaugh, Barry L..
    Agricultural and Food Policy, Sixth Edition.
    6th
    New Jersey:
  Prentice Hall,
  2007.
  Text.
  
MLA Style
      Knutson, Ronald D., Penn, JB L., Flinchbaugh, Barry L..
    Agricultural and Food Policy, Sixth Edition.
    6th
    New Jersey:
  Prentice Hall,
  2007.
  Text.
  
Turabian Style
      Knutson, Ronald D., Penn, JB L., Flinchbaugh, Barry L..
    Agricultural and Food Policy, Sixth Edition.
    6th 
    New Jersey:
  Prentice Hall,
  2007.
  Print.