Cattell, R. G. G. (1991). Object data management: Object-oriented and extended relational database systems. Addison-Wesley.
Chicago-viite (17. p.)Cattell, Roderic Geoffrey Galton. Object Data Management: Object-oriented and Extended Relational Database Systems. Reading: Addison-Wesley, 1991.
MLA-viite (9. p.)Cattell, Roderic Geoffrey Galton. Object Data Management: Object-oriented and Extended Relational Database Systems. Addison-Wesley, 1991.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.