@book{10525,
	author = {Iyengar, N. },
	title = {Discrete Mathematics},
	publisher = {Vikas Publishing House,},
	year = {2004.},
	address = {New Delhi:},
	url = {http://books.google.com.pk/books/about/Discrete_Mathematics.html?id=XTSmcBYz0SYC&redir_esc=y}
}