Gaya APA
      Williams, D J.., Watson, Gillian W.. (1988).
    The scale insects of the tropical south Pacific region Part 2 : The mealybugs (Pseudococcidae) .
    Wallingford, Oxon:
  C.A.B. International.
  
Gaya Chicago
      Williams, D J.., Watson, Gillian W..
    The scale insects of the tropical south Pacific region Part 2 : The mealybugs (Pseudococcidae).
    
    Wallingford, Oxon:
  C.A.B. International,
  1988.
  Text.
  
Gaya MLA
      Williams, D J.., Watson, Gillian W..
    The scale insects of the tropical south Pacific region Part 2 : The mealybugs (Pseudococcidae).
    
    Wallingford, Oxon:
  C.A.B. International,
  1988.
  Text.
  
Gaya Turabian
      Williams, D J.., Watson, Gillian W..
    The scale insects of the tropical south Pacific region Part 2 : The mealybugs (Pseudococcidae).
     
    Wallingford, Oxon:
  C.A.B. International,
  1988.
  Print.