Cita APA (7a ed.)

Warmer, J. B., & Kleppe, A. G. (1999). The object constraint language: Precise modeling with UML. Addison-Wesley.

Cita Chicago Style (17a ed.)

Warmer, Jos B., y Anneke G. Kleppe. The Object Constraint Language: Precise Modeling with UML. Reading, Massachusetts: Addison-Wesley, 1999.

Cita MLA (8a ed.)

Warmer, Jos B., y Anneke G. Kleppe. The Object Constraint Language: Precise Modeling with UML. Addison-Wesley, 1999.