@book{198,
	author = {Silberschatz, Abraham. and Korth, Henry F.},
	title = {Database system concepts /},
	publisher = {McGraw-Hill Education (India) Private Limited,},
	year = {c2011.},
	address = {New York ;},
	edition = {6th ed.},
	note = {Includes bibliographical references and index.}
}