@book{119235,
	author = { Martin, James},
	title = {Principles of database management /},
	publisher = {Prentice-Hall,},
	year = {1976.},
	address = {New Delhi :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0640/88022723-d.html}
}