Rosen, K. H. (2012). Discrete mathematics and its applications: With combinatorics and graph theory (7th edition.). McGraw-Hill.

Rosen, Kenneth H. Discrete Mathematics and Its Applications: With Combinatorics and Graph Theory. 7th edition. New York ; New Delhi: McGraw-Hill, 2012.

Rosen, Kenneth H. Discrete Mathematics and Its Applications: With Combinatorics and Graph Theory. 7th edition. McGraw-Hill, 2012.