Cita APA (7a ed.)

Joe Valacich, Valacich, J. S., & George, J. F. (2021). Modern systems analysis and design (Ninth, global edition.). Pearson.

Cita Chicago Style (17a ed.)

Joe Valacich, Joseph S. Valacich, y Joey F. George. Modern Systems Analysis and Design. Ninth, global edition. Harlow, England: Pearson, 2021.

Cita MLA (9a ed.)

Joe Valacich, et al. Modern Systems Analysis and Design. Ninth, global edition. Pearson, 2021.