@book{454,
	author = {Silberschatz, Abraham. and Galvin, Peter B.},
	title = {Applied Operating System Concepts.},
	publisher = {Wiley,},
	year = {2003.},
	address = {New York :},
	edition = {1st ed.},
	url = {https://books.google.com.pk/books/about/Applied_Operating_System_Concepts_Window.html?id=KG5GAAAAYAAJ&source=kp_book_description&redir_esc=y}
}