@book{8198,
	author = { Kotler, Philip and Keller,  Kevin Lane },
	title = { Marketing Management.},
	publisher = {Pearson,},
	year = {2016.},
	address = {Upper Saddle River :},
	edition = {15th ed.},
	url = {https://books.google.com.pk/books/about/Marketing_Management.html?id=pWkuAAAAQBAJ&source=kp_book_description&redir_esc=y}
}