APA (7th ed.) Citation

Booch Grady, Rumbaugh James, & Jacobson Ivar. (1999). The unified modeling language user guide. Addison-Wesley.

Chicago Style (17th ed.) Citation

Booch Grady, Rumbaugh James, and Jacobson Ivar. The Unified Modeling Language User Guide. Addison-Wesley, 1999.

MLA (8th ed.) Citation

Booch Grady, et al. The Unified Modeling Language User Guide. Addison-Wesley, 1999.