Gaya APA
      ROSEN, K, H., KRITHIVASAN, K. (2013).
    DISCRETE MATHEMATICS AND ITS APPLICATIONS SEVENTH EDITION (ED. 7).
    NEW YORK:
  Mc Graw Hill.
  
Gaya MLA
      ROSEN, KENNETH, H.., KRITHIVASAN, KAMALA.
    "DISCRETE MATHEMATICS AND ITS APPLICATIONS SEVENTH EDITION".
    ED. 7
    NEW YORK:
  Mc Graw Hill,
  2013.
  Text.