Cita APA (7a ed.)

Tilley, S. (2019). Systems analysis and design (Twelfth edition.). Cengage Learning.

Cita Chicago Style (17a ed.)

Tilley, Scott. Systems Analysis and Design. Twelfth edition. Boston: Cengage Learning, 2019.

Cita MLA (9a ed.)

Tilley, Scott. Systems Analysis and Design. Twelfth edition. Cengage Learning, 2019.