Date, C. J..
An Introduction to Database Systems / Date C. J.. - 2 edition. - Reading, Massachusetts : Addison-Wesley, 1979. - XXIII, 536 s.; 25 cm.
An Introduction to Database Systems / Date C. J.. - 2 edition. - Reading, Massachusetts : Addison-Wesley, 1979. - XXIII, 536 s.; 25 cm.