Shelly, G. B., & Gary B. Shelly; Thomas J. Cashman; Harry J. Rosenblatt. (2008). Systems analysis and design. Boston, MA: Thomson Course Technology.
Chicago Style aipamenaShelly, Gary B., và Gary B. Shelly; Thomas J. Cashman; Harry J. Rosenblatt. Systems Analysis and Design. Boston, MA: Thomson Course Technology, 2008.
MLA aipamenaShelly, Gary B., và Gary B. Shelly; Thomas J. Cashman; Harry J. Rosenblatt. Systems Analysis and Design. Boston, MA: Thomson Course Technology, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.