APA-Zitierstil (7. Ausg.)

Codd, E. F. (1990). The relational model for database management: Version 2 (Reprint. with corr.). Addison-Wesley.

Chicago-Zitierstil (17. Ausg.)

Codd, Edgar F. The Relational Model for Database Management: Version 2. Reprint. with corr. Reading, Mass. [u.a.]: Addison-Wesley, 1990.

MLA-Zitierstil (9. Ausg.)

Codd, Edgar F. The Relational Model for Database Management: Version 2. Reprint. with corr. Addison-Wesley, 1990.