@book{7954, author = {McFadden, Fred R. and Hoffer, Jeffrey A.}, title = {Modern database management.}, publisher = {Addison-Wesley,}, year = {1999.}, address = {Massachusetts :}, edition = {5th ed.}, url = {https://uowd.box.com/s/emji2tyypl5bnk41qhxxpqodaug1myvj} }