APA Style
      AVERBACH, Bonnie, CHEIN, Orin. (2000).
    Problem Solving Through Recreational Mathematics (Ed. 1, cet. 1).
    New York:
  Dover Publications, Inc.
  
Chicago Style
      AVERBACH, Bonnie, CHEIN, Orin.
    Problem Solving Through Recreational Mathematics.
    Ed. 1, cet. 1
    New York:
  Dover Publications, Inc,
  2000.
  Text.
  
MLA Style
      AVERBACH, Bonnie, CHEIN, Orin.
    Problem Solving Through Recreational Mathematics.
    Ed. 1, cet. 1
    New York:
  Dover Publications, Inc,
  2000.
  Text.
  
Turabian Style
      AVERBACH, Bonnie, CHEIN, Orin.
    Problem Solving Through Recreational Mathematics.
    Ed. 1, cet. 1 
    New York:
  Dover Publications, Inc,
  2000.
  Print.