Cita APA (7th ed.)

Young, R. R. (2001). Effective requirements practices. Addison-Wesley.

Cita Chicago (17th ed.)

Young, Ralph R. Effective Requirements Practices. Boston, MA: Addison-Wesley, 2001.

Cita MLA (8th ed.)

Young, Ralph R. Effective Requirements Practices. Addison-Wesley, 2001.