APA Style
Rosen, K, H., Krithivasan, K. (2013).
Discrete Mathematics and its Aplications = sevent editions .
Beijing, China:
the Mic grawhill companies.
MLA Style
Rosen, Kenneth, H.., Krithivasan, Kamala.
"Discrete Mathematics and its Aplications = sevent editions".
Beijing, China:
the Mic grawhill companies,
2013.
Text.