(1990). CASE method: Entity-relationship modelling / Richard Barker.
Cita Chicago (17th ed.)CASE Method: Entity-relationship Modelling / Richard Barker. 1990.
Cita MLA (9th ed.)CASE Method: Entity-relationship Modelling / Richard Barker. 1990.
Atenció: Aquestes cites poden no estar 100% correctes.