Παραπομπή σε μορφή APA (7η εκδ.)

Ehlmann, B. K. (2009). Object Relationship Notation (ORN) for Database Applications: Enhancing the Modeling and Implementation of Associations. Springer US.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ehlmann, Bryon K. Object Relationship Notation (ORN) for Database Applications: Enhancing the Modeling and Implementation of Associations. Boston, MA: Springer US, 2009.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ehlmann, Bryon K. Object Relationship Notation (ORN) for Database Applications: Enhancing the Modeling and Implementation of Associations. Springer US, 2009.