Cita APA (7a ed.)

Kotonya, G., & Sommerville, I. (1998). Requirements engineering: Processes and techniques. John Wiley.

Cita Chicago Style (17a ed.)

Kotonya, Gerald, y Ian Sommerville. Requirements Engineering: Processes and Techniques. Chichester: John Wiley, 1998.

Cita MLA (8a ed.)

Kotonya, Gerald, y Ian Sommerville. Requirements Engineering: Processes and Techniques. John Wiley, 1998.